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tatyana61 [14]
3 years ago
7

tickets to the theater cost $12 for adults and $9 for children. A group of 15 adults and children are attending the theater. If

the total cost was $153, how many adults and how many children went?
Mathematics
2 answers:
lara31 [8.8K]3 years ago
8 0

Answer:

6 Adults

9 Children

Step-by-step explanation:

-12(X+Y) = 15

12x+9y= 153

X+9= 15

12x -12y = -180

12x+9y = 153

X+9= 15

-9 -9

X= 6  

-3y = -27

Y= 9

kiruha [24]3 years ago
6 0

Answer:

Can be either 6 adult tickets and 9 children tickets or 9 adult tickets and 5 children tickets

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We are given : Cost of a gallon of milk = $2.50.

Cost of a cup of yogurt = $1.20.

Total money Monica has = $20.

Number of cups of yogurt Monica can buy = x.

And inequality made is also correct

1.20x + 2.5 ≤ 20.

Now, we need to solve it for x.

Subtracting 2.5 from both sides, we get

1.20x + 2.5 -2.5 ≤ 20 - 2.5.

1.20x ≤ 17.5

Dividing both sides by 1.20, we get

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3 years ago
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stealth61 [152]

Answer:

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f(x) = 7x + 7

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We can open up the parentheses:

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