Question

3. Write an equation and solve. Round to the nearest hundredth where necessary.

64 is 80% of what?
A 64. n=80; 0.8
B 0.64. n = 80; 125
C 80 = 64. n; 1.3
D 64 = 0.80 • n; 80

Answer 1

The answer is D. 64 = .80 * n; 80

Explanation:

the word "is" in math means equal

the word "of" in math means multiply

So 64 is 80% of what? is saying 64 = 80%n

Let's turn 80% to a decimal, so that would equal 0.8

64 = .8n --> I used n because n is "what"

now you solve for n. Divide both sides by .8 and you get 80