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Mandarinka [93]
3 years ago
8

How do you find the value of t in -t/7=1/15

Mathematics
1 answer:
kolezko [41]3 years ago
3 0
First, multiply the 7 on both sides.
\frac{-t}{7} =  \frac{1}{15}
-t =  \frac{7}{15}
Finally divide by -1 on both sides to get t = -7/15 as your answer.
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<h2>Hello!</h2>

The answer is:

It will take 42.35 minutes to weed the garden together.

<h2>Why?</h2>

To solve the problem, we need to use the given information about the rate for both Laura and her husband. We know that she can weed the garden in 1 hour and 20 minutes (80 minutes) and her husband can weed it in 1 hour and 30 minutes (90 minutes), so we need to combine both's work and calculate how much time it will take to weed the garden together.

So, calculating we have:

Laura's rate:

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Now, writing the equation we have:

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Hence, we have that it will take 42.35 minutes to weed the garden working together.

Have a nice day!

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