Four engineers can complete a task in 5 hours. Assuming the rate of work remains constant, six engineers will complete the task in: a. 7 h 30 min
b. 4 h 48 min
c. 126 h
d. 3 h 20 min​

Option (a) is correct.

Step-by-step explanation:

Given that,

Four engineers can complete a task in 5 hours i.e.

4 engineer = 5h

1 engineer = (5/4) h

Assuming the rate of work remains constant,

6 engineer =

= 7.5 hours

or

= 7 hours 30 minutes

Hence, six engineers will complete the task in 7 h 30 min.

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )