I will give brainliest. By the way, two people need to answer for someone to give brainliest.


For the direct variation equation y=223x, what is the constant of proportionality?

A: 2

B: 2 2/3

C: 2/3

D: 3

The equation y=7x gives the relationship between the number of road projects, x, and the number of weeks it takes a crew of workers to complete all the projects, y. What is the constant of proportionality? What does it mean in this context?

A: The constant of proportionality is 7. It takes the crew of workers 7 weeks to complete 1 road project.

B: The constant of proportionality is 7. It takes the crew of workers 7 days to complete all of their road projects.

C: The constant of proportionality is 7. It takes the crew of workers 7 days to complete 1 road project.

D: The constant of proportionality is 7. It takes the crew of workers 7 weeks to complete all of their road projects.

Write a direct variation equation to find the number of miles a jet travels in 3 hours if it is flying at a rate of 600 mph.

A: 600 = 3x

B: 3 = 600x

C: y = 600/3

D: y = 600 x 3

Jamal earns $125,000 a year as a systems analyst. He wants to know how much he will earn if he continues at the same rate of pay for 7 years. Which equation will help him find this amount?

A: x = 125,000/5

B:125,000 = 7x

C:125,000 = 7/x

D: y = 125,000 x 7