A student earns an 80% on their science test. If she got 20 questions correct, how many total were on the test?

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25 questions

Step-by-step explanation:

20 questions = 80%  If she got 80%, that means she got 20 questions correct.

5 questions = 20%  Here, we simply just divide by 4 to give us 20%.

25 questions = 100%  The total of the test would of course equal 100%, so we just multiply by 5 to give the total questions.

I hope this helps you!! ^-^

45

step-by-step explanation:

to find a percentage, add a decimal in front and multiply it by the other number.

.25 times 180= 45

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.