a gumball machine gives you no gum if you insert 5c, 5 gumballs if you insert 10c , 10 gumballs if you insert 15c and 15 gumballs if you insert 20c. how many gumballs could you expect to receive if you insert 35c?

30

Step-by-step explanation:

create a function where x is the money you insert in cents and y is the amount of gumballs you get.

y = x - 5 (meaning you get five less gumballs than the amount of cents you insert)

Therefore, when x = 35:

y = 35 - 5 = 30.

You will get 30 gumballs.

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get