Asked by Dolon
Dr.D spent 12% of his salary on transportation and 12% on house-rent.He then spent 25% of his remaining salary on his children's education.if her balance at hand is 2010 dollars,how much did he spend on education?
Answers
Answered by
Steve
x(1-.12-.12)(1-.25) = 2010
.76*.75x = 2010
x = 3526.32
x * .76 * .25 = $670.00 on education
.76*.75x = 2010
x = 3526.32
x * .76 * .25 = $670.00 on education
Answered by
Dolon
can you please explain it?
Answered by
Steve
12% = 0.12
spending means that amount is subtracted. So, subtract .12 twice.
Having done that, subtract another 25% = 0.25, and the remainder is 2010.
Then find x, the original amount which leaves that remaining amount.
Finally, knowing x, 25% of 57% of that amount is what was spent on education.
spending means that amount is subtracted. So, subtract .12 twice.
Having done that, subtract another 25% = 0.25, and the remainder is 2010.
Then find x, the original amount which leaves that remaining amount.
Finally, knowing x, 25% of 57% of that amount is what was spent on education.
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