In the sixth grade, each student will get 4 new books. there is one class of 15 students and one class of 20 students. the expression 4 × ( 15 + 20) gives the total number of new books. write a word expression for the numerical expression

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.

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.