Kenton has read 48 pages of his book. If this is equal to 40% of his book, how many pages is the entire book?

120

Step-by-step explanation:

We know that 40% of x is 48, we can set this porportion (is that what it is called?).

Check your work:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.