Answer: The reason that you would use addition to check subtraction is because it is the easiest, fastest, and most reliable way to check your subtraction problem.
Step-by-step explanation:
for example. you do something like: 42 - 19 = 23
you just add 19 and 23. if you get 42 then that means your answer if correct.
hope it helps
What is 3 5/8 in decimal form?
Answer:
35/8
step 1: turn the mixed fraction to an improper fraction =29/8
step 2: divide 29 by 8 ,it gives you 3
that and a remainder of 5 don't forget to place your decimal piont
step 3:place 0 at the back of 5 it then becomes 50 so we can easily divide 8 by 50
50 divided by 8 is 6 that gives a remainder of 2
step 3:place 0 at the back of 2 like earlier then it becomes 20
divide 20 by 8 ,this gives you 2 and a remainder of 4
step 4:place 0 at the back of 4 as done earlier , divide 40 by 8
it gives you 5 with no remainder
so your answer finally becomes 3+0.625 which is 3.625
HELP NOW PLS In 5-7 complete sentences, write a real-world situation that can be modeled by the equation. Make it fun by using your name, if you want!
16x=14x+8
Answer:
Step-by-step explanation:
Kate needs to read 2 books over summer vacation. She doesn't have the books yet so she's not sure how many pages are in each book. Kate doesn't want to wait until the last minute to read the books so she is planning to read the same number of pages each day of her summer vacation. If Kate's summer vacation is 72 days long, how can she write a variable expression to represent the number of pages she will need to read each day?
Work out the input that makes the output of A three times the output of B
The input that makes the output of A to be three times the output of B is; x = 9
How to Solve Algebraic Word Problems?We are told that both Machines A and B have the same input. Thus;
Output of Machine A using Algebraic Properties is;
Output A = 5x - 4
Output of Machine B using Algebraic Properties is;
Output B = 3x + 8
We want to find the input that makes the output of A to be three times the output of B. Thus;
5x - 4 = 3(3x + 8)
5x - 4 = 9x + 24
9x - 5x = -4 - 24
4x = -28
x = -28/4
x = 9
Thus, we conclude that the input that makes the output of A to be three times the output of B is; x = 9
Read more about Algebraic Word Problems at; https://brainly.com/question/21405634
#SPJ1
Which of the following equations best represents "y is directly related to the square of x"?
y = kx
y = kx2
y = k(1/x)
y = k(1/x2)
Answer:c.
Step-by-step explanation: its true
Answer:
the answer is y = k/x
Step-by-step explanation:
why? because I said so
What is this?? 4x - 3 = 12 + 2x
Answer:
x = 15/2
Step-by-step explanation:
lots of points pls answer
The table is a function, the graph is a function, but the mapping diagram is not a function.
What is a function?
Any statement, rule, or law in mathematics that specifies the connection between an independent variable and a dependent variable. In mathematics and the sciences, functions are fundamental for constructing physical connections.
In the given table and graph, each input value is paired with only one output variable, so the relation given in these are functions. But in the mapping diagram two inputs are paired with more than one output, so it is not a function.
To know more about functions, click on the link
https://brainly.com/question/27145006
#SPJ1
Determine whether the equation below has a one solutions, no solutions, or an infinite number of solutions. Afterwards, determine two values of xx that support your conclusion.
x+10=5
Given the expression,
x+10=5
Rearrange variables to the left side of the equation,
x = 5 - 10
Calculate the sum or difference,
x = -5
Therefore,
The value of x is = -5
Learn more about event correlation here: brainly.com/question/27669729
#SPJ9
Identify the correct solution to the problem 3 x 9/10.
2 x 9/10
3 x 9/10
3 x 7/10
2 x 7/10
The correct solution to of 3 x 9/10 is 3 x 9/10.
The correct option is (B).
What is fraction?The horizontal bar known as the fractional bar divides the numerator and denominator of every fraction into these two halves.
The denominator shows how many pieces were used to split the entire. Under the fractional bar, it is positioned in the lower portion of the fraction.How many of the fraction's segments are represented or chosen is shown in the numerator. It is positioned in the fraction above's upper portion.Given:
3 x 9/10
1. 2x 9/10
= 18/10
= 1.8
2. 3 x 9/10
= 27/10
= 2.7
3. 3 x 7/10
= 21/10
= 2.1
4. 2 x 7/10
= 14/10
= 1.4
Hence, the correct solution is 3 x 9/10.
Learn more about fraction here:
https://brainly.com/question/10354322
#SPJ2
solve and check the following equation
Answer:
10
Step-by-step explanation:
→ Expand brackets
-5.4 + 0.55x = 0.05x - 0.4
→ Minus 0.05x from both sides
-5.4 + 0.5x = -0.4
→ Add 5.4 to both sides
0.5x = 5
→ Divide both sides by 0.05
x = 10
thank you so much i almost failed
Answer:
haha what happened, ur welcome
ofc ofc
a household consists of a married couple, their twin three-year-old sons, and their twin eight-year-old daughters. the couple's children had no income and lived with their parents all of last year. how many exemptions can the couple claim on last year's tax return if they file with the "married filing jointly" status?
Considering that they filed the taxes using the "married filing jointly" status, six exemptions can be claimed by the couple.
What is the meaning of "married filing jointly" tax status?If a person and their spouse file taxes using the "married filing jointly" status, it means that two exemptions are claimed, one for the person and one for the spouse.
For this problem, the exemptions are given as follows:
Two for the couple, as they use the "married filing jointly" status.A total of four for the children, one for each children, considering that they have two children.2 + 4 = 6.
Hence:
Considering that they filed the taxes using the "married filing jointly" status, six exemptions can be claimed by the couple.
More can be learned about taxes and exemptions at https://brainly.com/question/16286115
#SPJ1
Answer:
6
Step-by-step explanation:
simple 2+4=6
When a certain odd number is divided by 5, the remainder is 1.
Which digit must be in the unit's place of the odd number?
The digit at unit's place of odd number should be 1 to be divisible by 5 and have remainder 1.
Odd numbers are the numbers that cannot be divided into two equal parts.
In odd numbers the digits in the units place always remains 1,3,5,7 and 9.
According to the question the odd number is divided by 5 and the remainder is 1.
For the number to be divisible by 5 and have remainder 1 the digit that must be in the unit place will be 1
If we see all the digits in units place of odd numbers then 1 is the only possibility as if it is 3 then the remainder will be 3. If it is 5 then the remainder will be 0, if it is 7 then the remainder will be 2 and if it is 9 then the remainder will be 4.
Hence the digit at unit's place of odd number should be 1.
Learn more about divisibility here : https://brainly.com/question/8226236
#SPJ9
The side lengths of a triangle are 4 inches, 6 inches, and 9 inches. Is this triangle a right triangle?
Answer:
No
Step-by-step explanation:
A right triangle needs to have a right angle in this case this triangle does not. The next answer up is a triangle with 6,8, and 10 inches. This would give you a right triangle.
Also, To check if the sides are a right triangle, check if the sum of the squares of the two smaller sides equals the length of the square of the longest side.
I haven't used triangles in a long time..... so I kinda forget but the little I remember I used. Hope this helps!
Answer: No
Step-by-step explanation: The given side lengths of the triangle are 4 inches, 6 inches, and 9 inches. To determine if the triangle is a right triangle, we can use the Pythagorean theorem.
The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.
Let's check if the given side lengths satisfy the Pythagorean theorem:
Using the Pythagorean theorem, we can calculate the squares of the side lengths:
4^2 = 16
6^2 = 36
9^2 = 81
Now, let's compare the sum of the squares of the two shorter sides to the square of the longest side:
16 + 36 = 52
81 = 81
Since 52 is not equal to 81, the given triangle is not a right triangle.
Use inverse operations to write one more correct number sentence for each of these:
a) 6x8 48
b) 29-15 = 14
The inverse operation for given sentences are 48 ÷ 8 = 6 and 14 + 15 = 29
What is inverse operation?Inverse operations, such as addition and subtraction, multiplication and division, are pairs of mathematical operations where one operation reverses the effect of the other. The term "inverse" refers to the reciprocal of a number, i.e., x - 1 = 1 / x. One results from multiplying a number by its reciprocal, or inverse. The impact of one operation on another is reversed by using inverse operations.
The inverse operation for the the equations are -
a) 6x8 = 48
⇒ 48 ÷ 8 = 6
b) 29-15 = 14
⇒ 14 + 15 = 29
To learn more about inverse operations from given link
https://brainly.com/question/20698766
#SPJ9
In 2013, there were 50,304 runners in the New York City Marathon. Each runner runs a distance of 26.2 miles. If you add together the total number of miles for all the runners, how many times would they run back and forth from the earth to the moon? Consider the distance from the earth to the moon to be 2.389 x 105 miles.
The runners would be able to run 2 times back and forth from the earth to the moon if their distances were added.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
There are 50,304 runners and each runner runs a distance of 26.2 miles. Hence:
Total distance ran by runners = 26.2 miles * 50304 = 1317964.8 miles.
The distance from the earth to the moon is 2.389 x 10⁵ miles, hence:
Ratio of total distance to distance from earth to moon = 1317964.8 miles/ (2.389 * 10⁵) = 5.516
Time ran back and forth = 5.516 / 2 = 2.76
The runners would be able to run 2 times back and forth from the earth to the moon if their distances were added.
Find out more on equation at: https://brainly.com/question/13763238
#SPJ1
1/4^x-1+1/2^x-4=2/5
Solve for x
Answer:
x = 7 and 1/5
Step-by-step explanation:
this is how you solve
A diagonal of a rectanglar field is 16.9m. If the ratio of the length to the width is 12:5, find the (a) dimensions, (b) Perimeter of the field
we get that the length of the rectangular field is 15.6 m, width is 56.5 m and the perimeter is 44.2 m.
The diagonal of a rectangular field = 16.9 m
d = 16.9 m
Ratio of length to the width is 12 : 5
Let length be 12 x
Width = 5 x
We get that:
16.9² = (12 x)² + (5 x)²
285.61 = 144 x² + 25 x²
169 x² = 285.61
x² = 285.61 / 169
x² = 1.69
x = √1.69
x = 1.3 m
Length = 12 (1.3 m) = 15.6 m
Width = 5 (1.3 m ) =6.5 m
Perimeter = 2 ( l + w)
P = 2( 15.6 + 6.5)
P = 2(22.1) m
P = 44.2 m
Therefore, we get that the length of the rectangular field is 15.6 m, width is 56.5 m and the perimeter is 44.2 m.
Learn more about perimeter here:
https://brainly.com/question/397857
#SPJ9
a bag contains 6 red balls 8 balls and an unknown number of yellow balls the probability of randomly choosing a green ball from the bag is 25%
1:1 show that there are 32 balls in the bag
The concept here used is probability.
Probability is the quantitative relation of range|the amount|the quantity} of outcomes in thorough set of equally possible outcomes that manufacture a given event to the whole number of doable outcomes
Probability(Event) = Favorable Outcomes/Total Outcomes = x/n
we are given red balls=6
green balls=8
Let yellow balls be x.
total balls=green+red+yellow =14+x
according to the question the probability of green balls is 25% i.e 1/4
probability of green balls=green balls/total balls
8/14+x = 1/4
On cross multiplying we get 32=14+x
x=18
The green balls are 18
total balls=green+red+yellow =32
Learn more about probability here:https://brainly.com/question/24756209
#SPJ9
on their first dive, researchers explore a part of the ocean floor that is 60 feet below sea level. This depth can be represented by the integer -60. On their second dive, researchers explore a deeper dive. d<-60 or(-60>d) true or false?
The statement that the inequality is d<-60 or(-60>d) is; true.
How to interpret Inequality word Problems?
Let d represent the depth of the researchers' second dive.
We are given that;
Depth of First dive = -60 ft
It was stated that in their second dive, the researchers explored a deeper depth, that is depth deeper than 60 ft.
Since the depth of 60ft is represented by the integer -60, then deeper depth would be represented by integers less than -60.
Thus, we can conclude that d can be represented with the inequality;
d < -60
Therefore the statement that d<-60 or(-60>d) is true.
Read more about Inequality Word Problems at; https://brainly.com/question/25275758
#SPJ1
How could you use estimation to determine if your answer is reasonable? Explain. (2 points)
You can use estimation to determine if your answer is reasonable by ensuring that the estimated answer does not have large outliers.
What is estimation?Estimation is a rough calculation or judgment using available information based on their face values without going into detail.
Estimation, which is based on approximation, helps to determine if a reasonable solution has been found before the events occur when the actual calculations are carried out.
Estimation ensures that the obtained data or results do not vary greatly from the central values. Estimation helps calculations without adequate data and when computations involve large numbers.
Thus, you can use estimation to determine if your answer is reasonable by ensuring that the estimated answer does not have large outliers.
Learn more about estimations at https://brainly.com/question/5399974
#SPJ1
I need help solving for X. Please tell me the steps.
Answer:
No solution for x
Step-by-step explanation:
Subtract 7 from both sides
==> [tex]5\left|x+1\right|+7-7=-38-7[/tex]
==> [tex]5\left|x+1\right|=-45[/tex]
Divide both sides by 5
==> [tex]\frac{5\left|x+1\right|}{5}=\frac{-45}{5}[/tex]
==> [tex]\left|x+1\right|=-9[/tex]
But this is not possible since absolute value cannot be negative
Hence the equation is inconsistent and therefore there are no solutions for x
Answer:
No solution
Step-by-step explanation:
5|x+1| + 7 = -38
5|x+1| = -38 - 7
5|x+1| = -45
Divide both sides by -5
|x + 1| = -9
Because of how the modulus works, whatever is inside it, whether positive or negative, will become positive.
And since the left side is always positive and the right side is always negative, there is no value of x that can satisfy the equation.
Therefore there is no solution to this equation
rearrange the equation to make x the subject a=4x/t-p
If we rearrange the equation to make x the subject a=4x/t-p, then we will have [tex]x= \frac{a(t-p)}{4}[/tex]
How can the equation be re arrange to make x the subject a=4x/t-p?from the question we were given the equation a=4x/t-p which is required to rearrange so that X can be made the subject of the formular, and this can be done below:
[tex]a=\frac{4x}{t-p}[/tex]
[tex]4x= a(t-p)[/tex]
[tex]x= \frac{a(t-p)}{4}[/tex]
Therefore If we rearrange the equation to make x the subject a=4x/t-p, then we will have , [tex]x= \frac{a(t-p)}{4}[/tex] because if we make the x the subject of the formular it will stay alone at the one side when all other term at the opposite side.
Learn more about equation at:
https://brainly.com/question/13763238
#SPJ1
NOTE; This is a complete question , no given option , even on internet.
jada used '60' pepper slices to make '3' pizzas. how many does it take to make '6' of jada's pizzas?
Answer:
Step-by-step explanation: it takes 60 peppers to make 3 pizzas we need 6 pizzas so we just take 60 x 2= 120. So we need 120 peppers to make 6 pizzas.
Study these equations:
f(x) = 2x – 8
g(x) = –5x
What is h(x) = f(x)g(x)?
h(x) = 10x2 – 40x
h(x) = –10x2 + 40x
h(x) = –10x + 40
h(x) = 10x – 40
The function composite h(x) = f(x)g(x) is -10x² + 40x.
Option b)-10x² + 40x is the correct answer.
What is the function composite h(x) = f(x)g(x)?Given the functions in the question;
f(x) = 2x - 8g(x) = -5xh(x) = f(x)g(x) = ?Since h(x) = f(x)g(x), replace the function designators in f(x)g(x) with the actual functions.
h(x) = f(x)g(x)
h(x) = ( 2x - 8 )( -5x )
Apply distributive property.
h(x) = ( 2x - 8 )( -5x )
h(x) = 2x(-5x) - 8(-5x)
Perform the operation to remove the parenthesis.
h(x) = -10x² + 40x
The function composite h(x) = f(x)g(x) is -10x² + 40x.
Option b)-10x² + 40x is the correct answer.
Learn more about function composite here: https://brainly.com/question/20379727
#SPJ1
Answer:
The answer is B
Step-by-step explanation:
<3
4. Avi thinks about how clock fractions can be used for division. He thinks
about what fractions correspond to 45 minutes and 15 minutes on a clock.
What is 45+ 15? Write the corresponding fractions and their quotient. Write
the fractions and quotients corresponding to the other times given below in
minutes. Explain how you divide fractions.
45 ÷ 15 =
60 ÷ 30 =
20 + 40 =
3
Hy
30 ÷ 10 =
3
15320
11
||
What two consecutive perfect squares does 10 lie between
===========================================================
Explanation:
The list of perfect squares is 1, 4, 9, 16, 25, 36, 49, ...
A perfect square is the result of multiplying some whole number with itself
Examples:
1^2 = 1*1 = 1
2^2 = 2*2 = 4
3^2 = 3*3 = 9
4^2 = 4*4 = 16
and so on. We see that 10 is between the perfect squares 9 and 16
100+ pts if correct math proofs
Using the two column proof, it has been proved that m∠2 ≅ m∠3
How to use two column proof?
From the given diagram, we can write the two column proof as follows;
Statement 1: m∠DHF = m∠EHG
Reason 1; Given
Statement 2; m∠2 + m∠1 = m∠DHF
Reason 2; Angle Addition Property
Statement 3; m∠1 + m∠3 = m∠GHE
Reason 3; Angle Addition Property
Statement 4; m∠2 ≅ m∠3
Reason 4; Definition of congruent angles
Read more about Two Column Proof at; https://brainly.com/question/5497450
#SPJ1
Write in decimal form then expanded form need help please!!
Answer: 49.017 inches
Step-by-step explanation:
[tex]\displaystyle\\49\frac{17}{1000} =\\\\49.017\ inches[/tex]
Multiply.
[−135⋅(−6)]⋅(−334)⋅10
Answer:
-2705400
Step-by-step explanation:
[−135⋅(−6)]⋅(−334)⋅10
[810} · (-334) · 10
[810] · -3340
-2,705,400
I hope this helps!
Bill saves 1/8 of his income. If his income is $92, how much does he save?
Given that Bill saves 1/8 of his $92 income, the amount of money he saves is $11.5.
How much does Bill saves?Given that;
Bill saves 1/8 of his incomeBill's income is $92Amount saved by bill = ?Let the amount saved by be be represented by the variable x.
Hence,
1/8 of Bill's income = Amount saved
1/8 × $92 = x
Multiply the numerators
x = 1/8 × $92
x = $92/8
Divide 92 by 8
x = $11.5
Given that Bill saves 1/8 of his $92 income, the amount of money he saves is $11.5.
Learn more word problems here: brainly.com/question/2610134
#SPJ1