Question

Ingrid types 3 pages in the same amount of time that Tanya types 4.5 pages. Write a proportion that could be used to find the number of pages Tanya will have typed when Ingrid has typed 11 pages, if they start typing at the same time. Use x to represent the number of pages Tanya has typed.

Answer 1

16.5 pages

Explanation:

Number of pages Ingrid types = 3

Number of pages Tanya types = 4.5

The proportion to find how many pages Tanya would have typed (x), if Ingrid typed 11 pages would be as follows:

3 : 4.5 = 11 : x

Thus:

`(3)/(4.5) = (11)/(x)`

Cross multiply

`3*x = 11*4.5`

`3x = 49.5`

Divide both sides by 3

x = 16.5 pages