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Why can you use cross products to solve the proportion StartFraction 18 over 5 EndFraction = StartFraction x over 100 EndFraction for x?

A)because 18 times 100 is equal to 5 times x, which means that x is equal to 36
B)because 18 times 100 is equal to 5 times x, which means that x is equal to 360
C)because 18 times x is equal to 5 times 100, which means that x is equal to 36
D)because 18 times x is equal to 5 times 100, which means that x is equal to 360

2 Answers

5 votes

18 times 100 is equal to 5 times x, which means that x is equal to 360

Explanation:

User Ivan Krechetov
by
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3 votes

Answer:

Because 18 times 100 is equal to 5 times x, which means that x is equal to 360

Explanation:

18/5=x/100

Cross product

18*100=5*x

1800=5x

x=1800/5

x=360

because 18 times 100 is equal to 5 times x, which means that x is equal to 360

User Johan Kvint
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5.3k points