Answer:
11.8
Step-by-step explanation:
3(12.4) + 6(11.5) = 37.2 + 69 = 106.2
106.2/9 = 11.8
Answer:
p=3
Step-by-step explanation:
9p+14=2p+35
Subtract 2p from each side
9p-2p+14=2p-2p+35
7p +14 = 35
Subtract 14 from each side
7p +14-14 = 35-14
7p = 21
Divide by 7
7p/7= 21/7
p=3
Answer:
$31.25
Step-by-step explanation:
Let's set up an equation.
$220. 28 - total
$126.53 - cost for parts
3 - # of hours
? - price per hour
3h + $126.53 = $220.28
Subtract $126.53 from both sides.
3h = $93.75
Divide by 3.
h = $31.25
The mechanic charges $31.25 per hour for labor.
Hope that helps.
