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the number of words Sylvia types varies directly with the amount of time she spends typing. If Sylvia types 100 words in 2.5 minutes, how many words does she type in 15 minutes.

1 Answer

4 votes

Answer:

600 words

Explanation:

To solve this problem, we need to cross multiply. Lets input the values (100, 2.5, 5) as shown below:


(100)/(2.5)=(x)/(15)

Next we cross multiply. We multiply 2.5 and x, and we multiply 100 and 15.


2.5(x)=2.5x


100(15)=1,500

Now, lets put the values above back into the equation:


2.5x=1,500

Our next step is to divide 1,500 by 2.5 to get x by itself.


x=(1,500)/(2.5)


x=600

Sylvia can type 600 words in 15 minutes.

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