Javier is one-fourth as old as his grandfather, who is 84 years
old.
Which equation can be used to find
a, Javier's age?
the
che
A 4 = 84
B 4a = 84
c4-89
D 4 = 842

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

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take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

step- i d k and i d c : )

you: : 0

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(3x-8) or (3x+8)

step-by-step explanation: