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crimeas [40]
3 years ago
9

if the cost of a dress is multiplied by 5/8 the price then becomes $30.00 what was the original price

Mathematics
1 answer:
Alik [6]3 years ago
6 0
Let's label the original price of the dress as x. We know that
x \times  \frac{5}{8}  = 30
so that means that we can find x by dividing both sides by 5/8:
x = 30   \div  \frac{5}{8}
A simple rule for dividing fractions is 'Keep Change Flip'. You keep the first number/fraction the same, you change the ÷ to a × and you flip the second fraction. Through this rule, we can now solve the equation much more easily:
x = 30 \times  \frac{8}{5}  \\ x =  \frac{240}{5} \\ x = 48
Therefore, the original price of the dress was $48
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