Two trains, Train A and Train B, weigh a total of 312 tons. Train A is heavier than Train B. The difference of their weights is 170. What is the weight of Train A?

The average yearly Medicare Hospital Insurance benefit per person was $4064 in a recent year. If the benefits are normally distributed with a standard deviation of $425, find the probability that the mean benefit for a random sample of 36 patients

In the system - 12c + 3d = 6 and - 3c + 6d = - 9, which expression could you use for substitution? A. d = - 1/2c - 3/2 B. c=-2d+3 C. c = 1/4d - 1/2 D. d = 4c - 2

2) You can buy 3 apples at the Quick Market for $1.05. You can buy 5 of the same apples at Stop and Save for $1.15. Which place is the better buy? 765 How do I find the answer

How are all triangles the same

What is the solution for 3x+10y-12z=40

What is 4/5 + 3/10 equal

What is 3.92400 times 10 to the 5 in scientific notation

How do you multiple the following (x-8) (x-7)

What is this 3*0.33 I don't no

Angle angle B is half the size of angle a the measure of angle C is equal to 1 less than 2 times the measure of angle B the sum of the angle a and angle B is 114 can the three angles form a triangle why or why not