Two trains, Train A and Train B, weigh a total of 421 tons. Train A is heavier than Train B. The difference of their weights is 313 tons. What is the weight of each train?

Football player weighed 170 2/3 pounds in may. during the summer he gained 25 5/12 pounds. during the first week of fall practice he lost 10 1/4 pounds and during the second week he lost another 3 1/2 ponds. how much does he weigh at this point? a.182 1/3ib b.181 1/2ib c.182 5/12ib d.183 2/3ib

Solve the equation by completing the square. x^2+2x=17

Agrasshopper weighs 0.89 grams. express the grasshopper’s weight in scientific notation.