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Enter the equation that can be usted to find the numbers of hours

User Changtung
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1 Answer

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In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data

Bob = 7 dog leashes in 2 hours

Nina = 4 dog leashes in 1 hour

60 leashes together

t = ?

Step 02:

Bob = 7 dog leashes / 2 hours

Nina = 4 dog leashes / 1 hour

Time = 60 leashes * ( 2 hours / 7 leashes + 1 hour / 4 leashes)


\text{time = 60 }\cdot\text{ (}(2)/(7)+(1)/(4))=60\cdot((8+7)/(28))=60\cdot(15)/(28)

time = 32.14 hours

The answer is:

The time together is 32.14 hours

User Mikel Urkia
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