Question

Which situation is best modeled by the equation 9+x=16 ?

a.You have $16
left after spending $9
and some other amount.

b.Nine friends each pay the same amount to get into a theme park, and the total is $16.

c.The price of a water bottle, $9
, was decreased by some amount to $16.

d.You pay $9
for a burger and some amount for dessert for a total of $16.

Answer 1

You pay $9

$

9

for a burger and some amount for dessert for a total of $16

$

16

.

Explanation:

Answer 2

d. You pay $9 for a burger and some amount for dessert for a total of $16.

Explanation:

We have the following equation:

`9+x=16`

So the variable of this equation is the amount of money. According to the statement we have that:

• A burger costs $9.
• A dessert costs $x
• The total you pay is $16

If we solve this equation, we have that:

`x=7`

So the dessert costs $7. Finally, you pay $16 for the burger and the dessert as follows:

• You pay $9 for the burger.
• You pay $7 for the dessert.
• You pay a total amount of money = $16