a student gets 86 problems on test correct and gets a grade of 98%. how many problems were on the test?

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03-04-2017
Mathematics

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a student gets 86 problems on test correct and gets a grade of 98%. how many problems were on the test?

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In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times

What value of x makes the equation true ? 4(2x-4)=16

find the circumference of a circle whose radius is 15.4cm

Аноним Аноним · Answer 1 · 2017-04-03T02:52:48+02:00

Аноним Аноним

03-04-2017

You could set up a proportion

86/x = 98/100

Then solve for x, I'll do it by cross-multiplying.

86 times 100 divided by 98 = 87.755102

87-88 problems

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