Jessica turned in a purse that con tained nickels, dimes, and quarters to the school's Lost and Found. She told Miss Riley that the purse has twice as many nickels as dimes and half as many quarters as dimes and that the total amount is $2.60. Find the num ber of each coin in the purse .

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

add 8+12 to get a simplified answer of 12r-20