It would be: 10.2 + 10.2 * 0.20
= 10.2 + 2.04 = 12.24
So, your final answer is 12.24
Hope this helps!
Answer:
why such complicated questions.....?
Step-by-step explanation:
A) D + Q = 124
B) .10D + .25Q = 20.50
Multiply B) by -4
B) -.40D + -Q = -82.00 then add to A)
A) D + Q = 124
.60 D = 42
D = 70 Dimes
Q = 54 Quarters
A roll of quarters = $10 = 40 Quarters so there will be 14 "extra" quarters.
