linhhhdoi
A city bus collected $780 in fares on one day.
The price of a regular fare was $0.80, and the
price of a discount fare was $0.40. If a total of
1200 people paid the fares on this bus, how
many people paid the regular fare?
A 1000
B 1950
C 600
D 750
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Mertsj
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x= number of regular fares
1200-x= number of discount fares
.80x+.40(1200-x)=780
Mertsj
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Can you solve the equation?
linhhhdoi
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No, I'm still stuck
Mertsj
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Multiply every term by 100 to remove all the decimal points.
linhhhdoi
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I still don't get it
Mertsj
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80x+40(1200-x)=78000
linhhhdoi
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then do i plug in my answer into the equation or something?
Mertsj
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Remove the parentheses by using the distributive property
Mertsj
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80x+48000-40x=78000
40x+48000=78000
40x=30000
x=750
750 people paid the regular fare.
linhhhdoi
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Where is the 48000 from?
Mertsj
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40 times 12000
linhhhdoi
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Ohh i see. I get it now. Thank you!
Mertsj
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yw