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Anika [276]
3 years ago
15

Pedro withdrew some money from his bank account. After giving $15 to his cousin, he spent 1/5 of what was left on a lamp, then h

e used the remaining $128 to buy a calculator. What percent of Pedro’s money did he give to his cousin?
*Please Show Work*
Mathematics
1 answer:
kolezko [41]3 years ago
4 0

Answer:

He gave 8.57 % of his money for his cousin.

Step-by-step explanation:

In order to calculate the percent that Pedro gave to his cousin, we first need to calculate his total amount, which is given by "x". This is given by:

x = 15 + (x - 15)/5 + 128

x = 15 + x/5 - 3 + 128

x = x/5 + 140

x - x/5 = 140

(5*x - x)/5 = 140

4*x = 700

x = 175

He had originally $175 and gave $15 to his cousing, therefore we can use a rule of three to calculate the percent that he gave to his cousin:

$175 -> 100%

$15 -> y%

175*y = 1500

y = 1500 / 175

y = 8.57 %

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