Answer:
18.75%
Step-by-step explanation:
(round answer if needed)
Let the slower runners speed be X kilometers per hour.
Then the faster runners speed would be X+2 kilometers per hour.
The formula for distance is Speed times time.
The distance is given as 30 kilometers and time is given as 3 hours.
Since there are two runners you need to add the both of them together.
The equation becomes 30 = 3x + 3(x+2)
Now solve for x:
30 = 3x + 3(x+2)
Simplify:
30 = 3x + 3x +6
30 = 6x + 6
Subtract 6 from each side:
24 = 6x
Divide both sides by 6:
x = 24/6
x = 4
The slower runner ran at 4 kilometers per hour.
The faster runner ran at 4+2 = 6 kilometers per hour.
Answer:
(f+g)(x) = -3x+5
Step-by-step explanation:
f(x)=x+8 and g(x)=-4x-3
(f+g)(x) = f(x) + g(x)
= x+8+-4x-3
= -3x+5
Answer:
<u>Equations for each salesman:</u>
- A. p(s) = 65s
- B. p(s) = 40s + 300
- C. p(s) = 900
<u>When s = 0, s= 1, s = 10 each of the gets paid:</u>
- A. p(0) = 0, p(1) = 65, p(10) = 650
- B. p(0) = 300, p(1) = 340, p(10) = 700
- C. p(0) = p(1) = p(10) = 900
<u>The above numbers as ordered pairs:</u>
- <u> A B C </u>
- s = 0 | (0, 0) | (0, 300) | (0, 900)
- s = 1 | (1, 65) | (1, 340) | (1, 900)
- s = 10 | (10, 650) | (10, 700) | (10, 900)
Answer:
Part A: you will save 0.25 cents
Part B: 13.75
Step-by-step explanation:
