evaluate the expression for the given value of the variable



4(x-4); x=7​

Answers

Answer 1

Answer:

12

Step-by-step explanation:

substitute x = 7 into the equation:

[tex]4 (7-4)\\4(3)\\12[/tex]

Answer 2

Answer:

12

Step-by-step explanation:

First, you insert the 7 in place of the x. Then you do what is in the parenthesis, according to PEMDAS. 7-4 = 3. You end up with 4(3). You then do distributive property and you end up with 12.


Related Questions

Please help with this question

Answers

To find out one book you have to divide 65 by 5

65/5 = 13

The answer is $13 per book

Answer:

One book would cost $13.

Step-by-step explanation:

To solve this all you have to do is divide 65 by 5. Since 65 divided by 5 is 13, 13 is your answer. So one book would cost $13.

I hope this helps you.

150 copies will cost $15.00. How many copies can be made for $6.00?

Answers

Answer:

60 copies

Step-by-step explanation:

$15/150 = 0.1 each copy costs 1 cent

$6/$0.1 = 60 copies

Answer:

60 copies

Step-by-step explanation:

After using Unitary Method, We find that one copy costs 0.1 dollar. So divide 6.00 dollars by 0.1 and we find 60

For checking, we can multiply 60 by 0.1 and we get the same answer

Slope= 0 ; y-intercept=10 equation of the line

Answers

Y=10 is the answer because there is no slips

What simple interest rate is needed for $1,000 to grow to $1,071.25 in 9 months? (Round to the nearest tenth of a percent, if necessary)

Answers

Answer:

9.6%

Step-by-step explanation:

Mac has 1/4 hour left of track practice and must be completed 8 laps around the track before he leaves which equation can be used to find how long has to complete each lap if mac runs at a constant pace?
A. X= 1/4 ÷ 8
B. X= 1/8 ÷ 1/8
C. X= 1/4 ÷ 1/8
D. X= 8 ÷ 1/4

Answers

Answer:

(a) [tex]Unit = \frac{1}{4}/8[/tex]

Step-by-step explanation:

Given

[tex]Time = \frac{1}{4}[/tex]

[tex]Lap = 8[/tex]

Required

Determine the time in each lap

The unit time in each lap is calculated by dividing the total time by the number of laps; i.e.;

[tex]Unit = \frac{Time}{Lap}[/tex]

Substitute values for Time and Lap

[tex]Unit = \frac{1}{4}/8[/tex]

The table shows a function. Is the function linear or nonlinear?

x y

7 20

8 12

9 7

Answers

the answer is linear

Convert the number 243FIVE to base ten

Answers

Step-by-step explanation:

ok that is the answer bro

find the difference 4 1/3 - 2 2/3

Answers

Answer:

1 2/3

Step-by-step explanation:

convert to improper fraction:

13/3 - 8/3

then solve:

13/3 - 8/3 = 5/3

convert back to a mixed number (unless your not supposed to, if that is the case then "5/3" is your answer):

"1 2/3" is "5/3" as a mixed number.

so your answer (as a mixed number) is:

"1 2/3"

It takes Emmanuel 20 minutes to walk to school. It takes Liah 80% as long to walk to school. How long does it take Liaqh to walk to school? Show your work, then put your answer in the text box.​

Answers

Answer:

16 minutes

Step-by-step explanation:

80% of 20 is

80/100 * 20 = 16

How do I solve this......?

Answers

Answer:

1.0.87

2.87/100

3.25%

4.0.25

5.35%

6.7/20

Step-by-step explanation:

Ben collects state quarters. He has 40 out of the 50 available quarters. What is 40 out of 50 as a percent?

Answers

Answer:

80%

Step-by-step explanation:

40 of 50 is 80 percent

If there are 9 hippos, how many pumpkins do you need?

Answers

Answer:

9 go to the store rn.

Classify each polynomials degree
1) X^3+2x^2-8x+16
2) X^4+4
3) -x^4-5x^4+1
4) 3x^5+7x^4-9x

Answers

Answer:

1). 3

2) 4

3). 4

4). 5

hope it helps ☺️☺️

Help i need asaaaaaap °∠°

Answers

Answer:

Cube 1 = 30 cubic

Cube 2 = 48 cubic

Cube 3 = 72 cubic

Step-by-step explanation:

Cube 1 = 5x2x3

Cube 2 = 6x2x4

Cube 3 = 8x3x3

Directions: select the correct answer from the drop-down menu.

Answers

Answer:

B

Step-by-step explanation:

B.) infinite solutions.

The reason I say this is because there is an arrow pointing down past the number line meaning that the number line never ends.

Hope this helps.

    。 .  .   。  ඞ ඞ ඞ ඞ ඞ ඞ ඞ 。  . • . [Northstar] was ejected. . .   。 .     。      ゚   .     . ,    .  .   ..  。    •   ゚  。   .   .      .     。。    •   ゚  。   .   .      .     。。    •   ゚  。   .   .      .     。。    •   ゚  。   .   .      .     。

Answer the question and explain your answer. I will be marking brainiest! If you have the correct answer and explain why it’s correct, I will probably pick YOU as brainiest! :)

Answers

Answer:

A = 200.96 sq ft

Step-by-step explanation:

formula for area of a circle:  A = π·r²

A = (3.14)·(8²)

A = 64·(3.14)

A = 200.96

Identify the constant term in this expression.
8x + 4y + xy + 1

Please help

Answers

The like terms are the terms that can be put

together. (9x) and (3x) are like terms because

they both have an x attached. (–5) and (3) are

like terms because they have nothing attached.

(GIVING BRAINLIYEST)
7. what is the volume of these 2 objects

Answers

Figure #1

use the smaller part of the figure with the dimensions of 1x2x3 and find the volume of that 1x2x3= 6m

find the area of the bigger part 3x6x3= 54m

54+6= 60m³

Figure #2

smaller part 2x2x7= 28m

bigger part 7x5x3= 105m

105+28= 133ft³

Answer:

v= LxWxH

3x5x2x7x5x7=7350

1x2x4x3x6x3=432

You’re five neighboring restaurants charge $9.95, $12.95, 8.50, 8.95, and $10.54 hamburger special. What is the mean price

Answers

$10.18 Add all the numbers then divide by the amount in this case 5

find a, geometry help !

Answers

Answer:

the answer would be i think im right 7

Step-by-step explanation:

A=7 :)
I hate math lol


PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.

Answers

Answer:

By creating some crops that resist certain insects

Step-by-step explanation:

Answer:

Aww man i wasn't the earliest

Step-by-step explanation:

By creating some crops that resist certain insects

3/4÷1/5 gffgdfdgfggdggdgdgdfgdgdgdgdgdgdgdgdfgdfgdgd ancer

Answers

Answer:

improper fraction- 15/4

Mixed number-  3  3/4

Decimal- 3.75

Step-by-step explanation:

use K.C.F (Keep Change Flip)

Supposed that m=3 (x+2)

Answers

I’m bad at math but photo math helps alottt

Michael draws a scale model of a shed for his engineering class. It is made from a triangular prism on top of a rectangular prism. The volume of the shed is 966 cubic inches. The congruent sides of the triangle are 7.8 inches. A. What is the depth of the shed?

Answers

I’m sorry I just need points I’m really sorry

An item has a listed price of $75 . If the sales tax rate is %9 , how much is the sales tax (in dollars)?

Answers

Answer:

$6.75

Step-by-step explanation:

9% of 75 = 6.75

.09 × 75 = 6.75

State a, b, and the y-intercept then graph the function and describe the end behavior of the grpahs

Answers

9514 1404 393

Answer:

  9.  a = 3, b = 3, y-intercept = 3

  10.  a = 5, b = 0.6, y-intercept = 5

Step-by-step explanation:

The picture is fuzzy, but we think the given equations are ...

  [tex]\text{9. }f(x)=3(3)^x\\ \text{10. }f(x)=5(0.6)^x[/tex]

You are comparing these to the form ...

  [tex]f(x) = a(b)^x[/tex]

so the values of 'a' and 'b' should be readily identifiable. The y-intercept in each case is y = a.

The end behavior depends on whether b > 1 or not. Growth functions (b>1) go to 0 on the left and ∞ on the right. Decay functions (b<1) are the reverse.

__

9. a = 3, b = 3, y-intercept = 3

The end behaviors are (x, f(x)) ⇒ (-∞, 0), (∞, ∞).

__

10. a = 5, b = 0.6, y-intercept = 5

The end behaviors are (x, f(x)) ⇒ (-∞, ∞), (∞, 0).

a = (5)
b = (3)
Work out 4a + b

Answers

Step-by-step explanation:

IF A=5, B=3

4*5+3=20+3

         =23

THE ANSWER IS 23

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Answers

Keelmcdmwkkdkfkflegkdkk

At a party, the punch bowl is hemispherical, with 2 foot radius and open at the top. The fruit punch weighs 66 pounds per cubic foot. At the beginning of the party the bowl is full to the brim. The rules for serving punch require each person to fill the ladle, raise it exactly 1 foot above the top of the owl (without spilling!), and then pour the punch into a cup at that level. After 10 minutes, 30 people have filled 30 cups, and the punch remaining in the bowl is 4 inches deep. Draw a picture of the situation, and then set up the integral for the work W involved in raising the punch until the punch remaining in the bowl has a depth of only 4 inches. Include all pertinent information in the integral, but do not evaluate the integral.

Answers

Answer:

W = ∫ [−2/3 to 0] 66π (2−y)(1−y²) dy = 2332π/27

Step-by-step explanation:

Vertical cross-section of bowl is a semi-circle of radius 1, centered at (0,0)

x² + y² = 1 (for y ≤ 0)

Bottom of bowl is at y = −1

Top of bowl is at y = 0

When punch is 4 inches deep, this 1/3 ft above bottom of bowl:

y = −1+1/3 = −2/3

So we integrate from y = −2/3 to y = 0

Radius of cross section at height of y is = x = √(1−y²)

Area of cross section at height y is πr²= πx² = π(1−y²)

Since each person is to lift ladle 2 feet above the top of the bowl, then distance = 2−y

W = Σ (density of punch * distance * volume of punch)

W = ∫ [−2/3 to 0] 66 * (2−y) * πr² dy

W = ∫ [−2/3 to 0] 66π (2−y)(1−y²) dy = 2332π/27

Change 6 1/8 from a mixed number to an improper fraction

Answers

Answer:

5 9/8

Step-by-step explanation:

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