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Arisa [49]
2 years ago
7

There were 30 students in the gym. 70% of the students in the gym were playing basketball. How many students in the gym were pla

ying basketball?
Mathematics
2 answers:
seropon [69]2 years ago
6 0

Answer:

21

Step-by-step explanation:

you multiply 30 by 0.7 and you get 21.

Rudik [331]2 years ago
4 0

Answer: 21

Step-by-step explanation: 30=100%

                                               3=10%

                                            0.3=1%

                                             3*7=21

                                             21=70%

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Answer:

1022 of $10 tickets, 1326 of $20 tickets, 948 of VIP $30 tickets

Step-by-step explanation:

We can set-up a system of equations to find the number of each kind of ticket. We know there are the cheap tickets c, the medium tickets m and the VIP tickets v. Since 3296 tickets were purchased, then c+m+v=3296.

We also know that 304 more medium priced tickets have been sold then cheap tickets. We write 304+c=m.

Lastly, we know that a total of $65,180 was sold. We write 10c+20m+30v=65,180.

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v=2992-2c

We will now substitute this into the remaining equation with our first substitution.

10c+20m+30v=65,180

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10c+6080+20c+89760-60c=65180

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This means 1,022 tickets purchased were $10 tickets. We substitute this equation back into m=304+c to find m.

m=304+1022

m=1326

This means 1,326 were $20 tickets.

Lastly we know 948 VIP tickets were bought because 1022+1326+948=3296


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