01-03-2019
Mathematics

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Which expression gives the number of people who got the mail after 3 weeks ?

Which expression gives the number of people who got the mail after 3 weeks class=

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Jenner1256 Jenner1256

02-03-2019

The first week is 10 x 1.4.
The second week is that answer x 1.4 etc.

So you are only multiplying the first week by 10.

{ [ 10 x 1.4) x 1.4] x 1.4}. Since multiplication is commutative, we don’t need the grouping symbols...

10 x 1.4 x 1.4 x 1.4

That s answer A

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