Answer:
An unknown variable
Step-by-step explanation:
r is an unknown variable -> the equation is used to solve for it.
Answer:
In math, r usually stands for radius.
Step-by-step explanation:
3x+4y=24
2x+5y=2
Please help me with this problem
Answer:
x=16
y=-6
Step-by-step explanation:
Find question Mark then solve x
9/x = x/9
The answer is =9
what is 5x + 8x2 + 32x + 17x2
Answer:
The answer is 37x + 5.
Step-by-step explanation:
5x + 8*2 + 32x + 17*2
37x + 16 + 34
37x +50
The tax on a $20 item is $1.12. How much tax will there be for an item that used to cost $50, but is now on sale
for 45.50?
Answer:2.56
Step-by-step explanation:20x2 is 40 1.12x2 is 2.24 add half of 1.12 is 2.80-.23 is 2.56
Complete the TABLE of values for x+y=6.
Then:
B) On the grid draw the graph of x+y=6 for the values of x between -2 and 3.
Anyone know the answers to these?
If, so ANSWER THEM RIGHT!
Answer:
X Y
-2 8
-1 7
0 6
1 5
2 4
3 3
Step-by-step explanation:
We have the equation: x+y=6
We want to get this in the form: y=mx+b (or in this case y=x+b)
To do this we need y to be positive and by itself
So we subtract y from both sides and divide by -1 (we divide by -1 because otherwise y would be negative and that does not fit our template of y=x+b)
Doing this we have
-x+6=y
From here we just plug in numbers -2 to 3 which I will assume you know how to do
X Y
-2 8
-1 7
0 6
1 5
2 4
3 3
John decided to look at new cars. John found a used car for $6000. A new car is $18000, so what percent of the price of a new car does john pay for a used car? Round your answer to the nearest tenth if necessary.
Answer:
50%
Step-by-step explanation:
6000 divided by 18000 is .50 and that multiplied by 100 gives you the percentage answer, which is 50.
Kyle went skydiving and jumped out of a plane that was 3,700 feet in the air. He fell at a rate of 75 feet every 5 seconds. How long will it take for Kyle to hit the ground?
of 7
Express in the form n : 1.
Give n as a fully simplified fraction.
6:14
Answer:
The ratio is;
3/7 : 1
Step-by-step explanation:
Here, we want to express the given ratio in the form n:1 where n is a fully simplified fraction
Mathematically, we have this by dividing both numbers by 14
That would be ;
6/14 : 14/14
= 3/7 : 1
Which of the following is the independent variable of G(F(y)) ?
A. F(x)
B. x
C.у
D. G(F(y))
SUBMIT
Given:
The composition of functions is G(F(y)).
To find:
The independent variable of G(F(y)).
Solution:
Independent variable is the variable whose value independent from other variable. It means the value of independent variables is not depend on the other variable.
We know that G(F(y)) can be written as
[tex]G(F(y))=(G\circ F)(y)[/tex]
Here, the value of function G depends on F(y) and the value of F(y) depend on variable y. But value of y does not depend on any variable. So, y is the independent variable of G(F(y)).
Therefore, the correct option is C.
This triangle has one side that lies on an extended line segment.
Based on this triangle, what statement about x is true?
x = 43 because 71−28=43 and 28 + 43 = 71
x = 81 because 180 − 71 − 28 = 81
x = 99 because 28 + 71 = 99 and 99 − 28 = 71
x = 137 because 180 − 71 + 28 = 109 + 28 = 137
A n s w e r :
C . . .
The measure of angle x is; 137 degrees, the statement (4) x = 81 because 180 − 71 − 28 = 81 is true.
What is a triangle?A triangle is a polygon that has three sides and three vertices. It is one of the basic figures in geometry.
In a triangle, the measures of the three angles add up to 180 degrees. In this triangle, one of the angles measures 71 degrees, and another angle measures 28 degrees.
Therefore, the measure of the third angle must be 48 degrees.
Since the measure of the third angle is 48 degrees, and the measure of one of the other angles is 33 degrees, the measure of the remaining angle must be 48 - 33 = 15 degrees.
Then the measure of the third angle must be 180 − 71 - 28 = 81 degrees.
Therefore, the measure of angle x is 81 degrees.
To learn more about the triangle, visit:
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On Monday, 414 students went on a trip to the zoo. All 9 buses were filled and 9 students had to travel in cars. Write an equation to find the number of students on each bus. Use b for your variable. Do not solve for b."
Step-by-step explanation:
let the total number of students in each bus be 'b',
Total number of students in 9 buses= 9b
Total number of students in cars= 9
Hence, Total number of students= 9b+9
= 414
Number of students in each bus = (414-9)/9
Show work
Perform the operations to simplify the expression:
(5x^5 + 4) - (2x^3+9)+(6x^5-x^3)
A. 11x^5+3x^3 + 5
B. 11x^5 - 3x^3 - 5
C. -3x^5 + 22x^3 + 5
D. 3x^5 + 11x^1 + 5
Answer:
b.
Step-by-step explanation:
(5x^5 + 4) - (2x^3+9)+(6x^5-x^3)
5x^5 + 4 - 2x^3 - 9 + 6x^5 - x^3
5x^5 + 6x^5 = 11x^5
-2x^3 - x^3 = -3x^3
+4 -9 = -5
Somebody please help quickly
Select true or false for each statement.
True
False
Surface area and volume both measure the amount of space
occupled by a solid figure.
A
B
True
False
Surface area and volume are measured using the same unit.
A
B
True
False
Surface area and volume are both attributes of solid figures.
A
B
Answer:
1 is false
2 is false
3 is true
Step-by-step explanation:
the answer to the length of x is in mm. please help!
Answer:
3.69 mm
Step-by-step explanation:
So it's a right triangle so you can use a^2+b^2=c^2
Plugging in what we know the equation becomes:
2.8^2+2.4^2=c^2 (C = x because x is the hypotenuse)
7.84+5.76=c^2
13.6=c^2
The square root of 3.68782 which rounds to 3.69
So x=3.69mm
Fill in the blank with the correct inequality symbol.
If x>_5, then 4x __ 20
Answer:
4x5 = 20
Step-by-step explanation:
Im not rlly sure at all but hope this helps :)
Subtract the equations
3х+4y - 17
- (3x+2y = 3)
A. 6х + 20
ов. - 6x = 14
Ос, 2у= 14
Op. бу 20
Step-by-step explanation:
3x - 3x = 0,
4y - 2y = 2y, and
17 - 3 = 14.
Hence,
3x + 4y = 17
- (3x + 2y = 3)
=> 2y = 14.
The correct answer is Option c.
A parabola has a maximum value of 4 at x= -1, a y-intercept of 3, and an x-intercept of 1.
Which graph matches the description? PLZ HURRY
Answer:
The answer is C
Step-by-step explanation:
Plz mark as Brainliest
A parabola has a maximum value of 4 at x= -1, a y-intercept of 3, and an x-intercept of 1. The x-intercepts are -3 and 1. So, The second graph is the right one.
We have given that,
A parabola has a maximum value of 4 at x = -1,
A y-intercept of 3, and an x-intercept of 1.
What is the maximum point of the graph?The maximum value of a graph refers to the point on the graph where the y-coordinate has the largest value.
A maximum graph is one that represents the largest value of the y-coordinate on the graph.
So, The second graph is the right one.
Note that when x = 1, y (the maximum) is 4,
and that, The x-intercepts are -3 and 1.
To learn more about the maximum value click here:
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Work out the area of a semicircle with radius 3 cm.
Give your answer in terms of it.
3 cm
Answer:
Step-by-step explanation:
Area of circle = pi r^2 = (22/7) × 9
Area of semi circle = (22/14) × 9 =14.14 cm^2
Do you want to the Mall last night you had $41 to spend you bought a hat for $9.28 and you bought a poster you had $6.71 left over how much did you spend on the poster
Answer:
25
Step-by-step explanation:
41 - 9.28 = 31.72
31.72 - 6.71 = 25
Answer:
the answer is 25
Step-by-step explanation:
hope this helps
I don’t understand...help :(
Answer:
I am your time to 50 paised the following link
Step-by-step explanation:
can you update your records and we
I will be nice if u help
Answer:
12+12x+6y
Step-by-step explanation:
12+6x+6x+6y
12+12x+6y
The sum of aanual interest and semi-annual compound interest on a sum of money for 2 years at the interest rate of 20% per annum is Rs. 18082. Find the differences.(Ans: Rs. 482)
The differences between the annual interest and semi-annual interest will be Rs 435.78.
What is compound interest?Compound interest is the interest on a loan or deposit calculated based on the initial principal and the accumulated interest from the previous period.
We know that the compound interest is given as
A = P(1 + r)ⁿ
Where A is the amount, P is the initial amount, r is the rate of interest, and n is the number of years.
The same of annual interest and semi-annual compound interest on a same of money for 2 years at the interest rate of 20% per annum is Rs. 18082.
The annual interest will be
⇒ 18082(1.2)² – 18082
⇒ Rs 7956.08
The semi-annual interest will be
⇒ 18082(1.1)⁴ – 18082
⇒ Rs 8391.86
Then the differences between the annual interest and semi-annual interest will be
⇒ 8391.86 – 7956.08
⇒ Rs 435.78
More about the compound interest link is given below.
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Write the equation you would use to solve for x. Then solve.
Answer:
x=12
Step-by-step explanation:
we know that the sum of the angles in a triangle is 180 degrees
to find x we have to calculate the sum of the angles
(10x-11)+(3x-2)+(3x+1)=180
10x-11+3x-2+3x+1=180
16x-12=180
16x=180+12
16x=192
x=192/16=12
A soup recipe calls for a common ratio of salt to pepper as ½ oz : ¼ oz. How much salt and pepper will be needed to create a seasoning mixture that has a total of 5 ¼ oz?
Answer:
Pepper = 1¾ Oz
Salt = 3½ Oz
Step-by-step explanation:
Given
Salt : Pepper = ½oz : ¼oz
Required
Determine the amount of salt and pepper needed for 5¼ Oz
For ease of calculation, we first convert the ratio to integers.
[Multiply ratio by 4]
Salt : Pepper = 4 * ½oz : 4 * ¼oz
Salt : Pepper = 2 Oz : 1 Oz
Total Ratio = 2 + 1 = 3
The amount of salt needed is then calculated as:
Salt = (Salt Ratio * 5¼)/(Total Ratio)
Salt = (2 * 5¼)/3
Salt = ⅔ * 5¼
Salt = ⅔ * 21/4
Salt = 42/12
Salt = 3½ Oz
Amount of Pepper is calculated as:
Pepper = (Pepper Ratio * 5¼)/(Total Ratio)
Pepper = (1 * 5¼)/3
Pepper = ⅓ * 5¼
Pepper = ⅓ * 21/4
Pepper = 21/12
Pepper = 1¾ Oz
There are three numbers for the combination to the store's safe. The first number is 17. The other two numbers can be multiplied together to give a product of 28. What are all of the possibilities for the other two numbers? Write your answers as multiplication equations, and then write all of the possible combinations to the safe.
Answer:
See Explanation
Step-by-step explanation:
Let the numbers be [tex]a, b\ and\ c.[/tex]
[tex]a = 17[/tex]
[tex]b * c = 28[/tex]
Required
Determine the possibilities for the other two
The possibilities of the other two (as a product) are:
[tex]1 * 28 = 28[/tex]
[tex]2 * 14 =28[/tex]
[tex]4 * 7 = 28[/tex]
All possible combinations are (where order is not important): 17 1 28, 17 2 14 and 17 4 7
Jacob has 1/2 of a container of trail mix. He is filling snack packs that each use about 1/6 of a container. How many snack packs can Jacob make?
Answer:
x = 3
Step-by-step explanation:
Jacob has 1/2 of a container of trail mix.
He is filling snack packs that each use about 1/6 of a container
We need to find the number of snack packs can Jacob make. Let he can make x snack packs.
[tex]\dfrac{1}{6}x=\dfrac{1}{2}\\\\x=3[/tex]
Hence, he can make 3 snack packs.
Write the equation of the line that passes through the points (-8,3) and
(3,2). Put your answer in fully reduced point-slope form, unless it is a
vertical or horizontal line.
Answer:
Slope of a line can be found by
y~2 - y~1 / x~2 - x~1
The coordinates given are (-8,3) and (3,2)
2 - 3 / 3 - (-8) = - 1/11 this is your Slope, m
Use the Slope and either point to find b by substituting x and y and m values we know into
y=mx+b
2 = -1/11(3) + b simplify
2 = - 3/11 + b isolate b by adding 3/11 to both sides
22/11 + 3/11 = b = 25/11
Use m and b to write your equation.
y= - 1/11x + 25/11
Divide. Write the quotient in lowest terms. 4 2/3 divided by 1/2
Answer:
9.3 repeating
Step-by-step explanation:
Answer:
9 1/3
Step-by-step explanation:
Not sure I just used a calculator lol.
The equation of line p is y= -7/8x + 3/2. line q is parallel to line p. what is the slope of line q?
Answer:
The slope of Line q is -7/8.
Step-by-step explanation:
Remember that for two lines to be parallel, their two slopes must be equivalent.
We are given that the equation of Line p is:
[tex]\displaystyle y=-\frac{7}{8}x+\frac{3}{2}[/tex]
So, the slope of Line p is -7/8.
Line p is parallel to Line q. Therefore, the two lines have the same slope.
Hence, the slope of Line q must also be -7/8.