6.05] There were 150 freshman and sophomores at the high school musical Reese and her friends attended. Freshman tickets were $2.00 each and sophomore tickets were $3.00 each. The receipts for freshman and sophomore tickets totaled $400. How many sophomores bought tickets?
100
50
75
25
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OpenStudy (anonymous):
first set up an equation for the problem
OpenStudy (anonymous):
do 2f + 3s =400 and f+s= 150
OpenStudy (anonymous):
Uh, I need help! :)
OpenStudy (anonymous):
do u understand the equation i set up
OpenStudy (anonymous):
Well, yes, I just don't know how to solve it. :(
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OpenStudy (anonymous):
ok hang on im going to solve this then try to break this down step by step
OpenStudy (anonymous):
Ok, thx. :)
OpenStudy (anonymous):
ok so first you have to isolate f in order to find s so subtract f from the first equation
OpenStudy (anonymous):
what will that get you?
OpenStudy (anonymous):
Is the new equation 1f+2s=250
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OpenStudy (anonymous):
yes but there are other ways to solve it try substitution, it will make more sense in the long run and will be much more efficient
OpenStudy (anonymous):
so your equation should be f=150-s
OpenStudy (anonymous):
so you can plug that back into your equation as 3(150-s) + 2s=400
OpenStudy (anonymous):
Is the answer 50?
OpenStudy (anonymous):
YES!
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