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Need help with number 7

Need help with number 7-example-1

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Since she runs 6
(1)/(2) miles each day and there 7 days per week, you will have to multiply 6
(1)/(2) times 7.

But since you have to use distributive properties, multiply like this (6
(1)/(2))(7)

6
(1)/(2) is equal to
(13)/(2)

Now turn 7 into a fraction, so its
(7)/(1)

Now multipy (6
(1)/(2))(
(7)/(1))

Multiply the numerators, so its 7 * 13 which gives you 91 and multiply the denominators so its 1 * 2 which gives you 2.

Put that back into a fraction as
(91)/(2)

Divde it to change it to a mixed number and the answer is 45
(1)/(2)

User Dijksterhuis
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