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miss Akunina [59]

3 years ago

9

A rectangle’s length is three times its width, w. Its area is 243 square units. Which equation can be used to find the width of

the rectangle?
a. w2 = 3(243)
b. 3w2 = 243
c. 4w2 = 243
d. 3w2 = 3(243)
please im on a timed test

1 answer:

Anastaziya [24]3 years ago

5 0

Answer:

b) 3w² = 243

Step-by-step explanation:

area = L x w

L = 3w

substitute for L:

243 = 3w x w = 3w²

3w² = 243

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