SOLUTION: Trucking company needs to move 21 tons of gravel. You have 8 qualified drivers in the company and two types of trucks. One type can haul 5 tons. The other can haul 3 tons. An insur

Question 290984: Trucking company needs to move 21 tons of gravel. You have 8 qualified drivers in the company and two types of trucks. One type can haul 5 tons. The other can haul 3 tons. An insurance requirement specifies that 5-ton trucks must have two drivers in the cab. 3 ton trucks only need one driver. Set up two equations for this problem. One to represent the drivers and one to represent the amount of tonnage hauled. Let X represent the number of 5-ton trucks and y the number of 3 ton trucks. Solve for x and y that will satisfy both equations. That is, determine how many of each size of truck should be used to move the gravel in one trip, using all available drivers.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
21 =3x+5y
8=x+2y
x=2 y=3
check
21=3*2+5*3
8=2+2*3
ok

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