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Julli [10]
2 years ago
8

The perimeter of a rectangular painting is 310 centimeters. If the width of the painting is 56 centim

Mathematics
2 answers:
gtnhenbr [62]2 years ago
7 0

Answer:

The length is 99 cm

Step-by-step explanation:

The perimeter of a rectangle is

P = 2 (l+w)

310 = 2( l+56)

Divide each side by 2

310/2 = 2/2( l+56)

155 = l+56

Subtract 56

155-56 = l+56-56

99 = l

stiv31 [10]2 years ago
5 0

Answer:

99 centimeters

Step-by-step explanation:

Use formula for perimeter of a rectangle.

P = 2l + 2w

310 = 2l + 2(56)

Solve for l.

310 - 2(56) = 2l

310 - 112 = 2l

198 = 2l

99 = l

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