I enter the mall with 75 dollars. I spend $a dollars at American Eagle, which is $4 more than the amount I spent at Banana Republic. I also spent $15 less at American Eagle than I spent at Cole Haan. How much money do I have left after shopping at these three stores? (Answer in terms of a.) please help will fan and medal
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OpenStudy (welshfella):
$ a at American Eagle
$ a-4 spent at Banana
$ a+15 at Cole Haan
add these values up then subtract them from 75.
OpenStudy (scott208):
a+a-4+a+15=75
OpenStudy (scott208):
which is equal to 3a+11=75 correct?
OpenStudy (welshfella):
No that is incorrect She needs the amount left after spending the money.
OpenStudy (welshfella):
75 - a -(a - 4) - (a + 15)
simplify that to get your answer.
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OpenStudy (scott208):
ohh ok
OpenStudy (scott208):
86-3a?
OpenStudy (welshfella):
check the 86
don't forget to change the signs when you distribute negatives over the parentheses.
OpenStudy (welshfella):
for example - ( x - 4) = -x + 4
OpenStudy (welshfella):
- * - = +
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OpenStudy (scott208):
75-a-a+4-a-15? and then simplify
OpenStudy (scott208):
64-3a?
OpenStudy (welshfella):
yes correct
OpenStudy (scott208):
so thats it?
OpenStudy (scott208):
thank you !
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