 # Two dump trucks have capacities of 10 tons and 12 tons. They make a total of 20 round trips to haul 226 tons of topsoil for a landscaping project. How many round trips does each truck make? sjeikdom0 2021-02-09 Answered
Two dump trucks have capacities of 10 tons and 12 tons. They make a total of 20 round trips to haul 226 tons of topsoil for a landscaping project. How many round trips does each truck make?
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Let x= truck
Actually, x is the number of round trips made by the 10 ton truck and y is the number of round trips made by the 12 ton truck.
x + y = 20
We know from the problem that if you add together the number of round trips made by each truck, you get the 20 trip total.
x= 20-y
This is just math to isolate x. So, now we can substitute "20-y" for x in the equation and it will be easier to solve.
10 (20-y) + 12y = 226
This equation reflects how much topsoil each truck carried. Truck x (which is 20-y now) carried 10 tons on each of its round trips, and truck y carried 12 tons per trip. [Note that even though its