Problem of the week 16- can you me on the problem of the week 16 on these questions

a) why can’t a total of only 100 ping pong balls be used for the draw?

b) what is the fewest number of balls needed to run the lottery?

c) how many ping pong balls would columbus get in the draw, assuming the

fewest number of balls were used?

d) how many balls would toronto get?

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x