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mote1985 [20]
3 years ago
6

X - 1 4 (12 - x) = x + 3(4 - x) - 2x

Mathematics
1 answer:
drek231 [11]3 years ago
8 0

Answer:

x = 20/7 = 2.857

Step-by-step explanation:

i've done it before

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2 years ago
A band sells tickets to a concert cost either $15 for adults or $10 for students. A total of 150 tickets are sold. If the band m
kodGreya [7K]

Answer:

Number of adult tickets sold= 100

Step-by-step explanation:

Giving the following information:

Adults tickets= $15

Student tickets= $10

Number of tickets sold= 150

Total sales= $2,000

<u>First, we determine the systems of equations:</u>

15*x + 10*y= 2,000

x + y = 150

x= number of adults tickets sold

y= number of students tickets sold

<u>Now, we isolate x in one equation, and substitute it in the other one:</u>

x= 150 - y

15*(150 - y) + 10y = 2,000

2,250 - 15y + 10y = 2,000

250 = 5y

50= y

x= 150 - 50

x= 100

<u>Prove: </u>

15*100 + 10*50= 2,000

100 + 50 = 150

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Allushta [10]

Answer:

64

Step-by-step explanation:

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