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2 years ago

The perimeter of a rectangle is 64 feet. If one side of the rectangle has a length of 20 feet, how long is the other side?

Mathematics

1 answer:

Helga [31]2 years ago

6 0

Answer:

other side is 12

Step-by-step explanation:

Givens

Perimeter = 64 feet

L = 20

Formula

P = 2L + 2w Substitute Givens

64 = 2*20 + 2w Combine

64 = 40 + 2w Subtract 40 from both sides

64-40 = 40-40+2w Combine

24 = 2w Divide both sides by 2

24/2=2w/2

12 = w

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Step-by-step explanation:

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3 years ago

The scale drawing of a rectangular room will be enlarged by a scale factor of 4 to create the actual room. The actual area of th

bearhunter [10]

Answer:

The expression is equal to $\frac{150}{4^{2}}$

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Step-by-step explanation:

we know that

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3 years ago

Henry received $500 for his birthday which he intends to invest in an account that pays simple interest at the rate of 12% per y

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Step-by-step explanation:

Given that :

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3 years ago

Am I right ? <br> [[ PLEASE HELP IF I"M NOT CORRECT. EXPLAIN, SHOW DETAILS, ETC. ]]

Elena-2011 [213]

Answer:

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Step-by-step explanation:

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3 years ago

The area of the rectangle as a single expression

Ne4ueva [31]

Answer: $A=15x^2+6x-48$

Step-by-step explanation:

The area of a rectangle can be calculated with this formula:

$A=l*w$

Where "l" is the length and "w" is the width.

You can identify from the figure that the length and the width of this rectangle are:

$length=3(x+2)\\width=5x-8$

Then, you need to substitute this lenght and this width into $A=l*w$ :

$A=3(x+2)(5x-8)$

Now, apply Distributive property:

$A=(3x+6)(5x-8)\\\\A=15x^2-24x+30x-48$

Finally, you need to add the like terms. Then, you get:

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3 years ago