This is 12,000 / 125 minutes = 96 minutes
Answer is a. 1 hour 36 minutes.
Cross multiply the fractions as in 20 times D and 13 times 60 and the problem will be 20d = 780. Here you can divide 780 by 20 and the answer is what D equals to.
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Answer:
Javon is incorrect because he subtracted 5 from the left side of the equation and added 5 to the right side of the equation
Step-by-step explanation:
Javon and Ivy are both given the equation 5-2x-1/3=4, Javon thinks the first step is -2x-1/3=9. Ivy thinks the first step is -2x-1/3=-1. Who is incorrect and why?
Given equation:
5 - 2x -1/3 = 4
Javon solution:
first step
-2x - 1/3 = 9
This is solved by subtracting 5 from the left side of the equation and adding 5 to the right side of the equation
5 - 2x -1/3 = 4
5 - 2x -1/3 - 5 = 4 + 5
-2x - 1/3 = 9
Javon is incorrect
Ivy solution:
first step
-2x -1/3 = -1
This is done by subtracting 5 from both sides of the equation
5 - 2x -1/3 = 4
5 - 2x -1/3 -5 = 4 - 5
-2x - 1/3 = -1
Ivy is correct
Javon is incorrect because he subtracted 5 from the left side of the equation and added 5 to the right side of the equation
Answer:
It would take 25 minutes for Patrick to complete the project alone.
Step-by-step explanation:
They did the project in 20 minutes, that is, 100% of the project, so:
In which x is the percentage that Patrick worked and y is the percentage that Stewart worked.
Patrick works four times as quickly as Stewart, so x = 4y.
So
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Patrick did 80% of the project in 20 minutes. We can solve this problem by a simple rule of three, in which the time it would take for him to complete the project alone is 100%. So
20 minutes - 0.8
x minutes - 1
It would take 25 minutes for Patrick to complete the project alone.
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