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15-02-2017
Mathematics

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A test has twenty questions worth 100 points. The test consists of multiple choice questions worth 3 points each and extended response questions worth 11 points each.

How many multiple choice questions are on the test?

Respuesta :

colleen8 colleen8

15-02-2017

X+y=20 (3x+3y=60)
3x+11y=100

8y=40
y= 5
X=15

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