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Brrunno [24]
3 years ago
10

Peter charges $5 an hour for

Mathematics
1 answer:
Sphinxa [80]3 years ago
6 0

Answer:

21 more hours

Step-by-step explanation:

Divide $75 by $5 to know how many hours he worked for. 75/5 is 15. So he worked for 15 hours so far.

Then find out how many hours will make $180. 180/5 = 36 hours. He needs to work 36 hours to earn $180 but he already worked 15. So, find the amount left. 36 - 15 is 21 hours.

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Find the surface area of this triangular prism
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Answer:

This may not be the numbers but just follow the way in how i did it hope it helps!!!

Step-by-step explanation:

SA= 2lw x 2lh x 2wh

Length - 5m

Width - 4m

Height - 6m

= 2 (5 x 4)+2 (5 x 6)+2 (4 x 6)

=2 ( 20)+2 (30)+2 (24)

= 40 + 60 + 48

=148

The dimensions of a second rectangular prism that will have the same surface area will be the below:

Length - 6m

Width -  5m

Height - 4m

SA = 2lw + 2lh + 2wh

= 2(6 x 5)+2 ( 6 x 4) +2 ( 5 x 4)

=2(30)+2 (24)+2 (20)

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= 148

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