3 years ago

Use the image to determine the height of the girl.

Mathematics

1 answer:

sergey [27]3 years ago

8 0

Answer:

72 in

Step-by-step explanation:

We know that 120 in is equal to the sum of the given height expressions.

(9x) +(7x-8) = 120

16x = 128 . . . . . . add 8 and simplify

x = 8 . . . . . . . . . . divide by 16

9x = girl's height = 9·8 = 72 . . . . inches

The height of the girl is 72 inches.

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