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3 years ago

5

A cable installer charges 40 per hour plus a 60 service charge your father firm hires to hook up his company's internet service

find the total charges if it takes the cable installer 8.5 hours to complete the task

1 answer:

pochemuha3 years ago

6 0

40 per hour times 8.5 hours=

40*8.5 = 340

340+60 = 400

total charge = $400

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John drove 450 miles in 8 hours. he averaged 50 miles per hour on the highway and 60 miles per hour on the turnpike. how many ho

Alexeev081 [22]

Total distance John drove=450 miles
total time=8 hours
let the number of hours he drove on highway be x, number of hours he drove on turnpike will be (8-x) hours
since
distance=speed*time
distance traveled in highway=50x
distance traveled in turnpike=60(8-x)
thus the total distance will be:
50x+60(8-x)=450
simplifying the above
50x+480-60x=450
-10x=450-480
-10x=-30
thus
x=3 hours
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