You are renting a moving truck and need to find one with enough space to carry your furniture. All the trucks are 7 feet
tall and 6 feet wide, but the lengths vary.
You need a truck with a volume of 840 cubic feet. Use the
volume of a rectangular prism formula V = lwh to find the
length of the truck you need?

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step-by-step explanation:

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.

answer: what is the question you're trying to ask?

step-by-step explanation: