Movie tickets are $4 for regular admission and $3 for seniors. On a night where there were 190 people and total sales of $720 ho
w many regular admission tickets were sold?
A. 50
B. 150
C. 40
D. 140
2 answers:
Answer is B: 150
write two equations
r+s=190
4r+3s=720
solve by substitution
the get r=150 s=40
Answer:
150
Step-by-step explanation:
So if we rearrange the second equation we can get:
s = 190 - a
Now we substitute this into the first equation:
4a + 3(190 - a) = 720
4a + (570 - 3a) = 720
4a + 570 - 3a = 720
4a - 3a = 720 - 570
a = 150
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