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slavikrds [6]
3 years ago
9

90 juniors took different SAT-II tests. 40% more students took the Chemistry test than took the History test, and 50% more stude

nts took the Math test than took the Chemistry test. How many students took each test?
Mathematics
1 answer:
erastovalidia [21]3 years ago
4 0

Answer:


Step-by-step explanation:

4.5x=90

x=20 history

28 chemistry

42 math

They add to 90.  


History test=x

Chemistry test=1.4x

Math test=(1.5)(1.4)=2.1x

They add to 90

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