Answer:
4x+7=23
4.4+7=23
Step-by-step explanation:
23-7=16
16/4=4
The algebra tiles used in the equation 4x + 7 = 23 are four x-tiles, seven unit tiles, and 23 unit tiles.
To model the equation 4x + 7 = 23 using algebra tiles, we would use variable tiles (x-tiles) and unit tiles.
For the term 4x, we would use four x-tiles since the coefficient is 4.
For the term 7, we would use seven unit tiles since it is a constant.
The equal sign (=) does not have a specific tile representation; it simply indicates the equation's balance.
On the other side of the equation, for the term 23, we would represent it using 23 unit tiles.
So, the algebra tiles used in this equation would be four x-tiles, seven unit tiles, and 23 unit tiles.
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determine the value of p if one root of equation x^2+px+1=0 is the square of other.
Answer:
-2
Step-by-step explanation:
Given equation is x²+px+1=0
comparing the equation with ax²+bx+c=0
then a=1,b=p,c=1
let the roots one root of the equation be A then
by question, another root is A².
we know
A(ALPHA)+A²(beta)=-b/a
A+A²=-p/1
A+A²=-p......1
again
A*A²=c/a
A³=1/1
A³=1
A=1
Now,
substituting A=1 in equation 1
1+1²=-p
2=-p
Therefore p=-2.
Macy’s is having a one-day 25% off special. If Bryan bought $110 worth of items, what would the final bill total after applying the discount of 25% and a sales tax of 6.5%? **Round to the nearest penny
Answer:87.86
Step-by-step explanation:
110x75/100=82.50
82.50x106.5/100=87.86
Please help it’s a slope from graph
Answer:
[tex]\displaystyle m=1[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (-1, 0)
Point (0, 1)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute [SF]: [tex]\displaystyle m=\frac{1-0}{0+1}[/tex][Frac] Subtract/Add: [tex]\displaystyle m=\frac{1}{1}[/tex][Frac] Divide: [tex]\displaystyle m=1[/tex]Answer:
1
Step-by-step explanation:
To do this you just need to know the slope equation y2 - y1 over x2- x1 so if you plug in 2 coordinates you can do (0,1) and (-1,0) and when you plug it into the formula you get 1/1 which is 1 so the slope is 1
Evaluate the expression below when x = 24 and y = 6.
4x8y
Answer:
96*48=4608
Step-by-step explanation:
4*24=96
6*8=48
am I right to think that this is multiplication
if not then use the 2 numbers and their sign whatever it may be.
Please answer this 7/8 - 6/7
Answer: [tex]\frac{1}{56}[/tex].
Step-by-step explanation:
First, we need to find a common denominator. Which is 56.
So the fraction for 7/8 will be [tex]\frac{49}{56}[/tex] and 6/7 will be [tex]\frac{48}{56}[/tex].
[tex]\frac{49}{56} - \frac{48}{56} = \frac{1}{56}[/tex].
So [tex]\frac{1}{56}[/tex].
PLEASE HELP
This table models a linear function.
x -8 -4 4 8
y -1 0 2 3
Enter the coordinates of the y-intercept in the boxes.
Answer:
[tex](x,y) = (0,1)[/tex]
Step-by-step explanation:
Given
The above table
Required
Determine the coordinates of the y intercept
Represent points on the table as:
[tex](x_1,y_1) = (4,2)[/tex]
[tex](x_2,y_2) = (8,3)[/tex]
First, calculate slope (m):
[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]m = \frac{3-2}{8 - 4}[/tex]
[tex]m = \frac{1}{4}[/tex]
For y intercept, the following coordinate point exist:
[tex](x_3,y_3) = (0,y)[/tex]
Because x = 0 at y intercept
Calculate the slope as:
[tex]m = \frac{y_3 - y_1}{x_3 - x_1}[/tex]
The equation becomes
[tex]\frac{1}{4} = \frac{y - 2}{0 - 4}[/tex]
[tex]\frac{1}{4} = \frac{y - 2}{- 4}[/tex]
Cross Multiply:
[tex]4(y-2) = -4 * 1[/tex]
Divide through by 4
[tex]y - 2 = -1 * 1[/tex]
[tex]y - 2 = -1[/tex]
Make y the subject:
[tex]y = 2-1[/tex]
[tex]y = 1[/tex]
Hence, the coordinates of the y intercept is:
[tex](x,y) = (0,1)[/tex]
1. Identify the domain of the graphed function
someone please help
Answer:
b
Step-by-step explanation:
i dont kno lol
Solve 3(4b – 2) = -6 + 12b
Answer:
All real numbers make his equation true.
Step-by-step explanation:
Contestants in the Run-and-Bike-a-thon
run for a specified length of time, then bike for a specified length of time. Jason ran at an average speed of 5.2 mi/h
and biked at an average speed of 20.8 mi/h,
going a total of 14.4 miles. Seth ran at an average speed of 10.4 mi/h and biked at an average speed of 18.2 mi/h,
going a total of 18 miles. For how long do contestants run and for how long do they bike? Round to the nearest hundredth if necessary.
Contestants run__hour and bike___hour.
Answer:
They ran for 0.923 hrs and biked for 0.46 hrs
Step-by-step explanation:
First thing to do is write down the inequality of the question
5.2x + 20.8y = 14.4
10.4x + 18.2y = 18
Multiplying the whole equation by 10, so as to eliminate the decimal places, we have.
52x + 208y = 144
104x + 182y = 180
Multiplying the first equation by 2, we have
104x + 416y = 288, next we solve it simultaneously with the second equation
104x + 416y = 288
104x + 182y = 180
Subtract 2 from 1, and we have..
416y - 182y = 288 - 180
234y = 108
y = 0.46
Now, we go back and substitute for y in the earlier equation, so that
52x + 208(0.46) = 144
52x + 95.68 = 144
52x = 144 - 95.68
52x = 48.32
x = 48.32/52
x = 0.929
helpppppppppppppp plssssssssss
Answer:
a) 40%
b) 1400
c) 700
Step-by-step explanation:
Hope this helps! :3
Plz mark as Brainliest!
i) If 12 men can do a piece of work in 72 days. In how many days will 24 men do the same work? *
i) Find the final amount to be paid to the bank if Rs. 7000 is borrowed for 4 years at a rate of 6 % per annum. *
2 points
Answer:
Question 1 answer is 144
Step-by-step explanation:
just multiply
Answer:
1. 36 days, 2. $8,680
Step-by-step explanation:
1. We know that 12 men can do the work in 72 days, so if you add double the men, it will take half the time. Half of 72 is 36, so our answer is 36 days.
2. If $7,000 is borrowed, that person owes $7,000 so far, but they keep it for 4 years with an annual interest rate of 6%. To solve this, we need to find 6% of 7,000. To do this, we multiply 7,000 by .06. That gets us 420. Now, we multiply 420 by 4. That gets us 1,680. Now, we add 1,680 and 7,000. That gets us 8,680. That means the final amount owed is $8,680.
Anaerw this pls ill give pointa
Answer:
B. C. D. E ALL HAVE FOUR SIDES
Answer:
B
Step-by-step explanation:
BRAINLIEST!!- Find 0.25of 40
Answer: 25% of 40 or 0.25 of 40 is 10.
Step-by-step explanation:
Basically you have to divide 40 by 10 because 1/4 of 100 is 25. 25 is 1/4 of 100.
So knowing this 40/0.25 is equal to 10. This is why 0.25 of 40 is 10.
Give the domain and range of the relation.
Answer:
(a) D: {-5, 0, 4, 6}; R: {-9, 0, 9, 13}
Step-by-step explanation:
The domain is the list of values in the x-column.
The range is the list of values in the y-column.
It is useful, but not essential, that the values be listed in numerical order.
x-values are 4, 6, 0, -5, so we can say the domain is {-5, 0, 4, 6}
y-values are 9, 13, 0, -9, so we can say the range is {-9, 0, 9, 13}
A type of rope weighs 4 ounces per inch.
What does it weigh in pounds per foot?
0.25 pounds per foot
64 pounds per foot
0.02 pounds per foot
3 pounds per foot
Answer:
Answer:3 pounds per foot
The required weight of the rope in pounds per foot is given as 3 pounds per foot.
Unit of measurement is defined as every entity having its measures in dimensions, weight, and time. Such as for length we have a meter, for liquid we have liters, and so on.
here,
As of the conversion of the unit,
45 ounces = 0.25 pound
12 inch = 1 foot
Weigh of rope, in 12-inch rope,
= 12 × 0.25
= 3 pounds per foot
Thus, the required weight of the rope in pounds per foot is given as 3 pounds per foot.
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What is the midpoint of the segment shown below?
Answer:
We conclude that the midpoint of the segment is:
[tex]\left(-\frac{9}{2},\:\frac{3}{2}\right)[/tex]Hence, option D is correct.
Step-by-step explanation:
Given the points
(-6, -1)(-3, 4)Finding the midpoint of the segment using the formula
[tex]\mathrm{Midpoint\:of\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \left(\frac{x_2+x_1}{2},\:\:\frac{y_2+y_1}{2}\right)[/tex]
[tex]\left(x_1,\:y_1\right)=\left(-3,\:4\right),\:\left(x_2,\:y_2\right)=\left(-6,\:-1\right)[/tex]
so
[tex]=\left(\frac{-6-3}{2},\:\frac{-1+4}{2}\right)[/tex]
[tex]=\left(-\frac{9}{2},\:\frac{3}{2}\right)[/tex]
Therefore, we conclude that the midpoint of the segment is:
[tex]\left(-\frac{9}{2},\:\frac{3}{2}\right)[/tex]Hence, option D is correct.
Find the coordinates of point B
Answer:
do u got a pic?
Step-by-step explanation:
Suppose that you and a friend are playing cards and you decide to make a friendly wager. The bet is that you will draw two cards without replacement from a standard deck. If both cards are diamonds, your friend will pay you $810. Otherwise, you have to pay your friend $49. Step 2 of 2 : If this same bet is made 914 times, how much would you expect to win or lose
Answer:
Step-by-step explanation:
We all know that there are 52 cards prszent in a deck out of which 13 are diamonds. Hence, the probability that both cards are spade is
13/52 * 12/51 =
0.25 * 0.235 =
0.0588
If both cards turn out to be diamonds, the friend pays $810 which is
$810 * 0.0588 = $47.628
On the other hand, the probability that both cards isn't a diamond is simply the negation of the probability that it is a diamond.
1 - 0.0588 = 0.9412
And you would have to pay your friend
$49 * 0.9412 = -$46.12, with the prefixed negative sign telling us that it's a lost bet.
the height of a shed is 6cm. a ladder leans agaisnt the shed with its base 4.5 m away, and its top just reaching the roof. what is the length of the ladder?
Answer:
4.5m
Step-by-step explanation:
The set up is a right angles triangle
Height of the shed = opposite side = 6cm
Distance of the ladder from the shed = adjacent = 4.5m
Lenght of the ladder = Hypotenuse = x
Using pythegoras theorem to find the length of the ladder
hyp² = opp²+adj²
hyp² = 0.06² + 4.5²
hyp²= 0.0036+20.25
hyp² = 20.2536
hyp = √20.2536
hyp = 4.50m
Hence the length of the ladder is 4.5m
Can you please help me for 2 questions
First question is...
Which of the inequalities or equations below are true?
a) |-15| < -10
b) |-15| < 10
c) |-15| = -15
c) |-15| > 10
d) none of the above
2nd question is...
Complete the equation: |10| =__
a) -10
b) 10
c) 1/10
d) none of the above
Answer:
see explanation
Step-by-step explanation:
1. c
2.b
A recipe calls for 1 and 1/3 cups of flour. If Yasmin decides to quadruple the recipe, how many cups of flour will she need?
A. 4 and 1/12
B 4 and 1/3
C 5 and 1/12
D 5 and 1/3
Answer:
20
Step-by-step explanation:
Assuming that is 3 1/3 C per batch.
(3 1/3)(6)
(10/3)(6)
(10)(2)
20
6. A thrift store in Bethesda, Maryland has a 15% off sale on pants. If the
original cost of the pants was $19. How much does Carmen save with the
discount on the pants? *
1 point
Your answer
Answer:
he saves $2.85
Step-by-step explanation:
The question is above.
Answer:
h(11) = 101
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
h(t) = -20 + 11t
h(11) is t = 11
Step 2: Evaluate
Substitute: h(11) = -20 + 11(11)Multiply: h(11) = -20 + 121Add: h(11) = 101Which fractions are equivalent to Two-twelfths plus four-twelfths? Check all that apply.
Answer:
6/24
Step-by-step explanation:
There are 1200 students at a school.
Each student has either a packed lunch or a school dinner.
62% of the students have school dinners.
55% of the students are girls.
45% of the girls have packed lunches.
How many boys have school dinners?
You must show all your working.
Answer:
The number of boys that have school dinners is 381.
Step-by-step explanation:
First, we need to find how many students have school dinners:
[tex] SD = 1200*0.62 = 744 [/tex]
The percent of girls that have school dinners:
[tex] \%SD_{g} = 100\% - 45\% = 55\% [/tex]
Now, we need to find the number of boys (b) and girls (g) at a school:
[tex] g = 1200*0.55 = 660 [/tex]
[tex]b=1200 - 660 = 540[/tex]
Hence. the percent of boys that have school dinners is given by:
[tex] SD = g*\%SD_{g} + b*\%SD_{b} [/tex]
[tex]\%SD_{b} = \frac{SD - g*\%SD_{g}}{b} = \frac{744 - 660*0.55}{540} = 0.706[/tex]
[tex] \%SD_{b} = 70.6\% [/tex]
Finally, the number of boys that have school dinners is:
[tex]B = 540*0.706 = 381[/tex]
Therefore, the number of boys that have school dinners is 381.
I hope it helps you!
the difference of a number s and 6
Answer: s-6
Step-by-step explanation:difference means subtract so that why there subtract sign. And you are trying to find the difference of s and 6 so you write s -6.
Hope it help and please give Brainliest if it did thanks ;)
Pls help I’m failing math
Answer:
The sale price is 57.12
Step-by-step explanation:
First find the markdown
markdown = original price * markdown percent
markdown = 84 *.32
markdown =26.88
Subtract the markdown from the original price
84- 26.88 =57.12
The sale price is 57.12
HELP URGENT WILL GIVE BRAINLIEST
Answer:
Mu answer is 9/4 I am nor explain
A pack of cinnamon-scented pencils sells for $7.00. What is the sales tax rate if the total cost of the pencils is $7.35?
Answer:
35 cents
Step-by-step explanation: