A guidance counselor compiles data relating a student's English grade to the number of languages studied. The results are shown
1 answer:
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↓ Is the same as
÷ 
Since it is a division by fraction, we can multiply by what is called the reciprocal
( The attached picture might help you )
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) × 
↓ For this part, we need the common denominator, which is 6
×
×
×
↑
Your final answer
↓ Is the same as
Since it is a division by fraction, we can multiply by what is called the reciprocal
( The attached picture might help you )
(
↓ For this part, we need the common denominator, which is 6
↑
Your final answer
Multiplication and division with the powers of ten
So, when multiply powers of ten, all you have to do add up the powers.
The reverse goes when you are dividing. You would subtract the powers.
9 x 10^7 => 3 x 10^3
The words " how many times as large as " indicates that we are going to divide the two, making it look like this:
Divide the 9 by 3 you get 3
Then subtract 10^3 from 10^7
Therefore, the answer is 3 x 10^4, or A