Question 941769
Plastic waste=P=8Y; Yard waste =Y Total=387 tons
P+Y=387 tons Substitute for P
8Y+Y=387 tons
9Y=387 tons Divide both sides by 9
9Y/9=387/9 tons
Y=43 tons
P=8Y=8(43 tons)=344 tons
CHECK:
total is 367 tons
P+Y=387 tons
344 tons + 43 tons = 387 tons
387 tons=387 tons