If one worker can assemble 9 products per hour and other can assemble 6 per hour. if they start together, how long will it take them to assemble 50 products in total.

answer:

3 (1/3) hours   or 200 min

step-by-step explanation:

we know that

one worker can assemble 9 products per hour

the other worker can assemble 6 per hour

so

both workers can assemble (9+6=15) products per hour

using proportion

find how long will it take them to assemble 50 products

1/15=x/50

x=50/15=10/3=3 (1/3) hours  

convert to minutes

(10/3)*60=200 min

the 3rd on is correct

step-by-step explanation:

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. : )