Equation a: a=5b + 1 equation b: a= 3b+ 5 which of the following is a step that can be used to find the solution to the set of equations?

ANSWER:

a = 11

b = 2

Explaination:

We have two equations:

a = 5b + 1 (1)

a = 3b + 5(2)

Here we use substitution method in order to solve the set of equations.

put a=3b+1 to equation (1)

3b + 5 = 5b + 1

Solve for b

5 = 5b -3b + 1

5-1 =2b

4 = 2b

b = 2

Now put the value of b = 2 into the equation (1) or (2)

a = 5b + 1

a = 5(2) + 1

a = 10 + 1

a = 11

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step-by-step explanation:

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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.