Bert can weed the garden in 3 hours. If Bert and Ernie work together, they can finish the job in 2 hours. How long would it take Ernie to do the job by himself? Letting x equal the number of hours it takes Ernie to do the job by himself, write and solve an equation.

Step-by-step explanation:

Both of them finish in an hour 1/2 of the job.

Bert finishes 1/3 of the job in an hour.

So Ernie can do in an hour 1/2-1/3=1/6 of the job.

This way we understand that Ernie needs 6 hours to finish the job.

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

answer: '

the distance between points l and m

step-by-step explanation: