Cheryl has twice as many nickels as quarters and five more dimes than nickels. If the combined value of the coins is $1.60, then how many coins of each type
does she have?

2 quarters

4 nickels

9 dimes

Step-by-step explanation:

quarters = x

nickels = 2x

dimes = 2x+5

25x+5(2x)+10(2x+5)=160

25x+10x+20x+50=160

55x=160-50

55x=110

x=2

SO:

(x) = 2 quarters

(2x) = 4 nickels

(2x+5) = 9 dimes

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours