y equals the # of hours u practiced so u substitute y for the # of hours and then solve for x. if im right u multiply x times 7 and u get how many minutes per week u practice the new song. and just the x represents what u practice in a day
210=7(15+x)
210/7=15+x
30-15=x
15 min =x
245=7(15+x)
245/7=15+x
35-15=x
20=x
315=7(15+x)
315/7=15+x
45-15=x
30 min=x
To find the price per shirt, simply divide the total (combined) cost of the shirts by the amount of shirts
A.) $26.96 (cost of 6 shirts) ÷ 6 (shirts) = $4.49 per shirt
B.) $21.00 (cost of 5 shirts) ÷ (5 shirts) = $4.20 per shirt
C.) $28.50 (cost of 7 shirts) ÷ (7 shirts) = $4.07 per shirt
Comparing A, B, and C, the best buy would be C ($28.50 for 7 shirts)
Answer:
73
Step-by-step explanation:
= 8 + 3x^2 • 5 + 2 • (3+7)
= 8 + 9 • 5 + 2 • (3+7)
= 8 + 9 • 5 + 2 • 10
= 8 + 45 + 20
= 73
The missing step is multiplication on the side with no x.
Answer:
16.32
Step-by-step explanation:
8.32x-55.04=80
Add 55.04 on each side:
80+55.04=135.04
8.32x=135.04
Divide 8.32:
x=(Estimated) 16.32