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nlexa [21]
4 years ago
15

The length of a rectangle is 3n + 2 and it's width is n -1. The perimeter of the rectangle is twice the sum of its length and it

's width. write an expression that represents the perimeter of the rectangle
Mathematics
1 answer:
mash [69]4 years ago
5 0

An expression that represents the perimeter of the rectangle would be:

P = 2(3n+2) + 2(n-1)

Hope this helps!

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12

Step-by-step explanation:

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An angle measures mc001-1. Jpg radians. What is the degree measure of the angle? 2. 44° 140° 280° 439. 6°.
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3 years ago
Use the equation to answer the questions. Round both answers to nearest whole number. Y = 47.25 − 2.25 X If Y equals 8 , what is
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Answer:

If Y equals 8, X is equal to 17.

If Y drops to 4, X is equal to 19.

Step-by-step explanation:

We know that the equation is Y = 47.25- 2.25X and we want to find X when Y = 8. To do this we solve the equation for X.

47.25-2.25X=8\\47.25\cdot \:100-2.25X\cdot \:100=8\cdot \:100\\4725-225X=800\\4725-225X-4725=800-4725\\-225X=-3925\\\frac{-225X}{-225}=\frac{-3925}{-225}\\X=\frac{157}{9}=17.4444...

17.4444 rounded to the nearest whole number is 17.

If Y drops to 4,

4 = 47.25- 2.25X\\47.25-2.25X=4\\47.25\cdot \:100-2.25X\cdot \:100=4\cdot \:100\\4725-225X=400\\4725-225X-4725=400-4725\\-225X=-4325\\X=\frac{173}{9}=19.2222...

19.2222 rounded to the nearest whole number is 19.

5 0
4 years ago
Hal is three times as old as his nephew. Hal is 12 years old. Write a multiplication equation and solve the equation to determin
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4

Step-by-step explanation:

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Step-by-step explanation:

are if triangle equal 1/2 multiplied to height to base

so 1*10*13/2

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