The number of miles driven varies directly with the number of hours in the car. Billy drives 171 miles in 3 hours, so he could d rive _____ miles in 4.5 hours.
2 answers:
Remember that direct variation means that you have a relationship of the form
In this case it's a special equation, namely distance=rate*time. So first we have to find the rate given the information in the problem:
Now we know that the rate is constant since Billy's distance varies directly with time. The next step is to find distance given a different amount time:
You can finish that one off!
Answer:
Step-by-step explanation:
Amillo
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Answer:
100/π cm
Step-by-step explanation:
Volume of a cylinder = πr²h
Volume = 10,000cm³
Radius = 10cm
The formula for the height of a cylinder is obtained as:
V = πr²h
h = V/ πr²
h = 10000 /π × 10²
h = 10000 /π × 100
h = 100/π cm
The height of the cylinder in terms of π = 100/π cm
Answer:y=1/2x + 5/2
Step-by-step explanation:
Hello User,
Answer: five hundred and twenty-two million and forty-three thousand and nine
Answer:
Point-slope equations:
y - 5 = 4/3 (x - 6)
or
y - 1 = 4/3 (x - 3)
Step-by-step explanation:
Given two coordinate points (6, 5) and (3, 1)
Slope = (5 - 1)/(6 - 3) = 4/3
Point-slope equations:
y - 5 = 4/3 (x - 6)
or
y - 1 = 4/3 (x - 3)
Step-by-step explanation:
if one pump = x
the other pump = 2x
therefore
x + 2x = 8 minutes
3x = 8 minutes
Divide through by 3
x = 8/3 minutes
converting it to seconds
x = 8/3 * 60
x = 160 seconds
therefore
the first pump = 2x = 2 * 160 = 320 seconds
the second pump = x = 160 seconds