Question

8th grade mathTotal cost with 10 snacks:Total cost with x snacks:

Answer 1

You know that:

- She is going to see a movie and is taking her 5 kids.

- The cost of each movie ticket is $15.

- Each assortment of snacks costs $3 each.

Let be "y" the total amount of money she has to pay and "x" the number of snacks she buys for everybody to share.

You can set up the following equation to represent that situation (remember that 6 people are going to see the movie)

`\begin{gathered} y=(15)(6)+3x \\ y=90+3x \end{gathered}`

Then, if Hawa were to buy 10 snacks, the value of "x" would be:

`x=10`

Therefore, substituting this value into the formula and evaluating, you get:

`y=90+3(10)=90+30=120`

Hence, the answers are:

- She would have to pay $120 if she were to buy 10 snacks.

- She would have to pay for "x" snacks:

`90+3x`