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?(1 point)

Question

Responses

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

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

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

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

Answer 1

The constant of proportionality is 7. It means that for every increase of 1 in the number of road projects, it takes the crew of workers 7 weeks to complete all of the projects.

Answer 2

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.(1 point)
Responses

3=600x
3 equals 600 x

y=6003
y equals Start Fraction 600 over 3 End Fraction

600=3x
600 equals 3 x

y=600×3

Answer 3

The correct response is:

y = 600 * 3

Answer 4

A tiger sleeps 18 to 20 hours a day. How many hours will a tiger sleep in 7 weeks?(1 point)
Responses

 630 to 700 hours
 630 to 700 hours

126 to 140 hours
126 to 140 hours

882 to 980 hours
882 to 980 hours

2.5 to 2.9 hours

Answer 5

To find the number of hours a tiger will sleep in 7 weeks, we can use the range given for the daily sleeping hours.

18 hours/day * 7 days/week = 126 hours/week
20 hours/day * 7 days/week = 140 hours/week

Therefore, a tiger will sleep between 126 and 140 hours in 7 weeks.

The correct response is:

126 to 140 hours

Answer 6

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?(1 point)
Responses

125,000=7x
125,000 equals 7 x

x=125,0007
x equals Start Fraction 125,000 over 7 End Fraction

y=125,000×7
y equals 125,000 times 7

125,000=7x

Answer 7

The correct equation to help Jamal find how much he will earn in 7 years is:

y = 125,000 * 7