Answer:
D) 7.01
Step-by-step explanation:
The rates of doing work, in terms of jobs per hour, will add when the two painters are working together. If A represents Alberto's time to do the job alone, we have ...
1/4.12 = 1/10 + 1/A
(Jobs per hour is the inverse of hours per job.)
A = 1/(1/4.12 -1/10) ≈ 7.0068 ≈ 7.01
It takes Alberto 7.01 hours to do the job alone.
(3, 62)
Since that second equation is equal to y, you can substitute the entire thing into the top equation, getting rid of the y and solving for x. It equals 3.
You can then plug 3 in for x on either equation, which should be 62.
Answer:
20 servings / 4 servings = 5 times as much.
Multiply the amount needed for 4 servings by 5:
2/3 cups x 5 = 10/3 = 3 1/3 cups total
Step-by-step explanation:
I believe your answer is C
Answer:
5. V
6. S
7. V
8. S
9. C
Step-by-step explanation:
Vertical angles: Angles facing each other vertically.
Supplementary angles: Angles that add up to 180 degrees, making a straight line.
Complementary angles: Angles that add up to 90 degrees, making a right angle.
