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bazaltina [42]
3 years ago
9

9th October 2020

Mathematics
1 answer:
Anit [1.1K]3 years ago
8 0

Answer: x = 15

Step-by-step explanation:

The perimeter is the sum of the 2 lengths and 2 widths.

Step 1: 2 times the length is 4x + 10

Step 2: 2 times the width is 2x - 20

Step 3: Add the both results together.

6x - 10

Step 4: Create an algebraic equation.

6x - 10 = 80

Step 5: Solve for x.

6x = 90

6x/6 = 90/6

x = 15

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2 years ago
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tresset_1 [31]
The values of the coefficient are ax^2+bx+c=

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3 years ago
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3 0
3 years ago
Consider the equation showing the distributive property.
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