Here are the correct answers for each question:
- a. 2 2/3
- d. The constant of proportionality is 7. It takes the crew of workers 7 weeks to complete 1 road project.
- b. 630 to 700 hours
- b. y = 125,000 x 7
Math Quick check. 1 right answer per question. no wrong answers.
1. For the direct variation equation y=2 2/3x
, what is the constant of proportionality?
a. 2 2/3
b. 2/3
c. 3
d. 2
2. 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 days to complete all of their road projects.
b. The constant of proportionality is 7. It takes the crew of workers 7 weeks 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 1 road project.
3. A tiger sleeps 18 to 20 hours a day. How many hours will a tiger sleep in 7 weeks?
a. 126 to 140 hours
b. 630 to 700 hours
c. 882 to 980 hours
d. 2.5 to 2.9 hours
4. Chizuru earns $125k a year as a Rehab Tech At VCA Animal Hospital. She wants to find out she will earn if she continues at the same rate of pay for 7 years. Which equation will help Chizuru find the amount?
a. x = 125,000/7
b. y = 125,000 x 7
c. 125,000 = 7/X
d. 125,000 = 7X
1 answer