Question

@iGreen A student earned a grade of 80% on a Math Test that had 20 problems. How many problems on this test did the student answer correctly?

Answer 1

Multiply..

Answer 2

80% * 20 = ?

Answer 3

\(\sf 80\% \rightarrow 0.80\)

Answer 4

Remember, percentages are parts of 100, so to simplify a percentage, just divide it by 100.

\(\sf 80\% \rightarrow \dfrac{80}{100} \rightarrow 0.80\)

Answer 5

Oh okay. o.o

Answer 6

Okay, that's 16. o.o

Answer 7

Yep, that's our answer..the student got 16 questions correct out of 20.

To check, divide.

\(\sf \dfrac{16}{20} \rightarrow 0.80 \rightarrow 80\%\)

Answer 8

Ohhhh okay. I'm in Summer School for only Math, you make it so easy, for me it just seem really hard..

Answer 9

That's what I'm here for \(\Huge\ddot\smile\)

Answer 10

^_^ So sweet.