Middle School

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Gwen went walking for 3 days in one week. The first day, she walked 3 1/2 miles. Each day after that, she walked 1/4 mile more than the day before. How many miles did Gwen walk in total that week?

Answer :


she walked 11.25 miles ................


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Rewritten by : Barada

Gwen walked 11 miles.

What is Unitary method?

It is a method where we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.

First, let us make a note of the information we have. There are 5 ice-creams. 5 ice-creams cost $125.

Step 1: Let’s find the cost of 1 ice cream. In order to do that, divide the total cost of ice-creams by the total number of ice-creams. The cost of 1 ice-cream = Total cost of ice-creams/Total number of ice-creams = 125/5 = 25. Therefore, the cost of 1 ice cream is $25.

Step 2: To find the cost of 3 ice-creams, multiply the cost of 1 ice cream by the number of ice-creams. The cost of 3 ice-creams is cost of 1 ice-cream × number of ice-creams = 25 × 3 = $75. Finally, we have the cost of 3 ice-creams i.e. $75.

on first day = 3 1/2 miles = 7/2 miles

On second day= 7/2 + 1/4 = 15/4 miles

On third day= 15/4 miles

So, she walked

=7/2 + 15/4 +15/4

=14+ 15 +15 /4

=44/4

=11 miles

Learn more about unitary method here:

https://brainly.com/question/22056199

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