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ycow [4]
3 years ago
8

a plumber charged $12 for 15 minutes of work. At this rate, what would the plumber charge for 1 hour of work?

Mathematics
2 answers:
Valentin [98]3 years ago
6 0

There are 4 15 minute periods in an hour, so you would multiply the 15 minute rate by 4 giving you 12•4. The answer is 48.

NARA [144]3 years ago
5 0

Answer:

$ 48

Step-by-step explanation:

Given,

Total charge = $ 12,

Time = 15 minutes = \frac{1}{4} hour,

( ∵ 1 hour = 60 minutes ⇒ 1 minute = \frac{1}{60} hour ⇒ 15 minutes = \frac{15}{60} = \frac{1}{4} hour )

Thus, the speed of charge = \frac{\text{Total charge}}{\text{Time in hours}}

=\frac{12}{1/4}

= $ 48 per hour,

Hence, the plumber charges $ 48 for an hour.

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