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Keith_Richards [23]
3 years ago
11

Emma ran 5 miles each day for one 1 month. The next month she ran 6.5 miles each day. What percent did Emma increase her mileage

for the second month?
Mathematics
1 answer:
Law Incorporation [45]3 years ago
4 0
The difference = 6.5 - 5
the difference = 1.5

percentage = 1.5/5 × 20/20
percentage = 30/100
percentage = 30%
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Ann would need 3 h to complete the remainder of the Job.

Step-by-step explanation:

Step 1.

The "speed" that each girl has to do the work is determined as:

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The amount of work done by Tina in 9 hours, is obtain multiplying by the "speed" calculated in step 1:

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Step 3.

The remaining job is calculated as 1-\frac{2}{3}=\frac{1}{3}. It means that <em>still remains is one third of the job to be completed</em>.

Step 4.

The time required for Ann to complete the job is calculated dividing the remaining of the job by the "speed" of Ann to do the job.

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That is the same as 85%.

So either way, the answer is 85%.

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3 years ago
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