Byron has 72 coins in his piggy bank. the piggy bank contains only dimes
and quarters. if he has $14.70 in his piggy bank, which equation can be
used to determine q, the number of quarters he has?
(1) 14.70 + 0.25q = 72
(2) 0.10(q - 72) + 0.25q = 14.70
(3) 0.10(72 - q) + 0.25q = 14.70
(4) 0.10q + 0.25(72 - q) = 14.70

(3)

Step-by-step explanation:

Let d represent number of dimes and q represent number of quarters.

We have been given that Byron has 72 coins in his piggy bank. We can represent this information in an equation as:

We are also told that the value of all coins is $14.70.

Value of d dimes: .

Value of q quarters: .

From equation (1), we will get:

Substitute this value in equation (2):

Therefore, the equation can be used to determine q, the number of quarters.

answer: what in the world is this

step-by-step explanation: