1. a 100 foot rope is cut into 2 pieces (a and b). piece a is 2ft less than 5 times the length of piece b.
(a) what is the system that models this situation ?
(b) solve the system of equations

simultaneous equations

Step-by-step explanation:

a = 5b - 2

a +2 =5b

+2 = 5b - a

:. 5b - a = 2(1)

a + b = 100 (2)

from (1)

a = 5b - 2

so substituting a = 5b - 2 in (2) we get

5b - 2 + b = 100

6b = 102

b = 102/6

= 17

so from (2)

a + b = 100

a = 100 - b

= 83

answer:

a=9

step-by-step explanation: lmk if you need a explanation

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.