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i need help on scaffolding for lesson 1.4, question 8

Mathematics
Tutor: None Selected Time limit: 1 Day

consider the numbers -4.2, -1.3, -8.4, and 7.3. which two have a product of 35.28?

Sep 12th, 2014

It is required that the product is of positive sign i.e it is 35.28

So we multiply -8.4 x -4.2 (we cannot chose 1.3 as 8.4 x 1.3 will be close to 10 or 11 and not near enough to 35.28)(we cannot multiply one negative number and one positive number and get a positive number so 7.3 is ruled out)

So the answer is -8.4 and -4.2

Sep 12th, 2014

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Sep 12th, 2014
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Sep 12th, 2014
Dec 2nd, 2016
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