Mr. carter and ms. torres need two busses to drive their classes to the amusement park. each class needs money to rent a bus and $20 to tip the driver. the two classes together raised $240 how much money can they spend on each bus rental?

$100

Step-by-step explanation:

if $20 is needed for one bus tip, then $40 is needed for the two buses that the teachers will need

so $240 - $40 = $200 to spend on bus rentals

since there are two buses, the $200 needs to be halved

therefore, each bus rental is $100

40 is the final : )

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18