Question

Bob has 60 coins consisting of quarters and dimes. The coins combined value is

$13.35. How many quarters and how many dimes does he have?
O q+d= 13.35
0.25g +0.10d = 60
Oq-d=13.35
O
0.25g +0.10d = 60
q+d=60
0.25g +0.10d = 13.35
.25g + d = 60
q+0.10d 13.35
=

Answer 1

Third option
q + d = 60

0.25q + 0.10d = 13.35

Explanation:

Given q quarters and d dimes

Total number of coins = q + d and this must equal 60

Therefore q + d = 60

Since each quarter is 25 cents(or $0.25) and each dime is 10 cents($0.10)

Total value = 0.25q + 0.10d = 13.35

Correct set of equations is the third option