Answer:
and are indeed proportional
Explanation:
In order to confirm that is proportional to , you need to make sure both fractions share the same denominator. In this case, it is better to multiply 9 by a value that causes the product to be 72 than to divide 72 by a number to get to 9. 72 is eight times greater than 9, so you multiply by (This is important as you need to make sure you aren't changing the value of the fraction when multiplying a number to it, so you must be sure to multiply your fraction by the number over itself - which is essentially one - to ensure that you are keeping the value of the fraction the same) and you will get , this means the fractions and are proportional.
Yes.
7 x 8= 56
9 x 8= 72
56/72 is proportional to 7/9
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