Question

Movie Theatre A has a popcorn machine with a 120-gallon capacity. It sells 7 gallons of popcorn per hour. Movie Theatre B has a popcorn machine with a 150-gallon capacity. It sells 9 gallons of popcorn per hour. Write and solve an equation to show when the two popcorn machines will have the same amount of popcorn left.(1 point)

Responses

120−7x=150−9x ; x=15
120 minus 7 x equals 150 minus 9 x ; x equals 15

120+7x=150+9x ; x=−15
120 plus 7 x equals 150 plus 9 x ; x equals negative 15

120x−7=150x−9 ; x=15
120 x minus 7 equals 150 x minus 9 ; x equals 15

120−7x=150−9x ; x=10

Answer 1

[AI-generated answer — Bot GPT 3.5]

The correct equation is 120 - 7x = 150 - 9x. To solve this equation, you need to combine like terms and isolate the variable.

First, simplify both sides of the equation:
120 - 7x = 150 - 9x

Next, combine the constants on each side:
-7x + 9x = 150 - 120

Simplifying further:
2x = 30

Now, solve for x by dividing both sides of the equation by 2:
x = 15

Therefore, the two popcorn machines will have the same amount of popcorn left after 15 hours.

Answer 2

answer choice?

Answer 3

[AI-generated answer — Bot GPT 3.5]

My apologies for not including that in my response. The correct answer choice is:

120 - 7x = 150 - 9x ; x = 15