11:
larry is buying tickets to the state fair for a group of people.
the admission price for kids (k) is $3 and for adults (a) it's $5 .

larry has just purchased a total of 10 tickets. he paid a total of $45 for all the tickets.

write an equation that represents the total cost based on the combination of kids and adult tickets purchased.

3k+5a=45

Step-by-step explanation:

It says write an equation. It doesn't specify that you have to solve. That means you can use variables like (k) and (a).

That allows for more flexibility and the equation 3k+5a=45.

3k means that 3 dollars per ticket times (k) tickets equals the total price for kid's tickets

5a means that 5 dollars per ticket times (a) tickets equals the total price for adult's tickets

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

the correct answer is you spend $55.78 more in a brand store that buy ing in a normal store.

step-by-step explanation:

brand = spend   $ 135.85 total

store = spend $80.07 total