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vesna_86 [32]
3 years ago
14

31. The square and the equilateral triangle

Mathematics
1 answer:
Tatiana [17]3 years ago
3 0

Answer:

equate

Step-by-step explanation:

4(2x + 5) = 3(2x + 8)

8x + 20 = 6x + 24

2x = 4

x = 2

substitute back in to find side measures and perimeters

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PLEASE HELP
Darya [45]

2n+4 + 5n =- 3n+2

P- parthentiches

A- Add

D- Divied

6 0
3 years ago
Help me please !!!!!
Anuta_ua [19.1K]
You are correct!

90 would be the correct choice, here is why:

use the eqation: $20*30*15%

first times $20*30=600

now, 600 *15%= $90

therefore, your answer is 90 dollars
5 0
4 years ago
What’s the equation in slope-intercept form?
Varvara68 [4.7K]
You can take any 2 points from the table and calculate the slope, as follows:
                     -2-(-4)        2
m = slope = ---------- = ------ = -1/5
                      -5 - 5       -10
The slope-intercept form is    y = mx + b.  You already know m (which is -1/5), and have several points from which to choose to obtain x and y.  Let's use the given point (-2, -1).

Then    -1 = (-1/5)(-2) + b, or   -1 = 2/5 + b.  Solve for b.

-5 = 2 + 5b,  so  5b = -7, and b = -7/5.

The desired equation is     y = (-1/5)x - 7/5.
4 0
3 years ago
Manuel earns $7.25 per hour helping his neighbor. Last month he earned $348. Choose the correct equation and solution which dete
zysi [14]

Answer:

Number of hours= 48 hours

Step-by-step explanation:

Giving the following information:

Hourly rate= $7.25

Total earned= $348

<u>To calculate the number of hours worked, we need to use the following formula:</u>

Total earned= hourly rate*number of hours

number of hours= total earned / hourly rate

number of hours= 348 / 7.25

number of hours= 48 hours

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bw%7D%7B7%7D%20%20%3D%20.%203" id="TexFormula1" title=" \frac{w}{7} = . 3" alt="
lina2011 [118]

Answer:

2.1

Step-by-step explanation:

w/7 = .3

Multiply each side by 7

w/7 *7 = .3*7

w = 2.1

8 0
4 years ago
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