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babymother [125]

3 years ago

8

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:

labwork [276]3 years ago

8 0

Answer is B: 150

write two equations

r+s=190
4r+3s=720

solve by substitution

the get r=150 s=40

Nonamiya [84]3 years ago

6 0

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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Step-by-step explanation:

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$\displaystyle 2S= \int\limits^{\pi/3}_0 {\sqrt{\sec^2(\theta)}\sec^2(\theta) \, d\theta$

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