MATH SOLVE

4 months ago

Q:
# You earned a 90% on a science test. You answered 18 questions correctly. How many questions were on the test?

Accepted Solution

A:

There were twenty questions on the test, we can figure this out by writing your word problem as an equation: x= the amount of questions there are on the test, with this in mind the equation will be written out 18/x=90%, then
do the same to both sides of the equation, divide both sides by .90
which gets rid of the x on the left side and 18 divided by .90 = 20. So
X = 20.