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vfiekz [6]
3 years ago
5

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

Mathematics
2 answers:
Kruka [31]3 years ago
8 0
This is an easy one!

Answer = 20. 

(18/20) x 100 = 90%

So, 20 questions!
zalisa [80]3 years ago
5 0
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%, <span>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.</span>
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