rjejfjdjdjdj rjejfjdjdjdj
  • 03-04-2018
  • Mathematics
contestada

Barbara answered 72 questions correctly on her test. If her score on the test was 80%, how many questions were on the test?

Barbara answered 72 questions correctly on her test If her score on the test was 80 how many questions were on the test class=

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bezruchukp6kuuz bezruchukp6kuuz
  • 03-04-2018
Answer is B - 90
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Bladerunner1976
Bladerunner1976 Bladerunner1976
  • 03-04-2018
For a percentage question setup is like this:
part = percentage * whole

part = 72
percentage = 80% = 0.8

72 = 0.8 * whole
whole = 72/0.8 = 90
Answer Link

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