Question

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.

Answer 1

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.