Probability: question 4
tim's computer store sells computer bundles that include a mouse,
keyboard, and laptop. tim sells mac and pc laptops. keyboards and
mice both come in white, black, or grey. how many different bundles
can tim sell?

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

they used 313 gallons of paint