The sum of a number ,1/6 of that number ,2 1/2 of that number, and 7 is 2 1/2 find the number

Let x be the number. If I understand the wording of the problem correctly, then the equation is this:  x + (1/6)x + (5/2)x + 7 = 5/2 .

x = - 27/22  or - 1 5/22 if a mixed number is desired.

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.

the answer for the second equation is (4,0)