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To use a floor cleaner, two-thirds of a cup of cleaner must be mixed w
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08 Dec 2021, 02:17
08 Dec 2021, 02:17
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To use a floor cleaner, two-thirds of a cup of cleaner must be mixed with one-half gallon of water. If only one-half cup of cleaner is left, how much water should be mixed with it?
1/4 gallons
1/3 gallons
2/5 gallons
3/8 gallons
5/6 gallons
1/4 gallons
1/3 gallons
2/5 gallons
3/8 gallons
5/6 gallons
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To use a floor cleaner, two-thirds of a cup of cleaner must be mixed w
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08 Dec 2021, 07:54
08 Dec 2021, 07:54
2
This is simply an issue of scale, as it would be for any recipe:
1) 2/3 cup cleaner to 1/2 gal water would imply this:
(2/3)/(1/2) = 2/3 * 2 = 4/3, telling us that it is either 4 cup cleaner to 3 gal water*.
2) Now we need to scale 4 cups down to 1/2 cup, which is basically just dividing by 8 (that is, 4/8 = 1/2). That means that if our amount of cleaner is smaller by a factor of 8, then the amount of water would also be smaller by a factor of 8:
Remember, it was 4 cups cleaner for 3 gal water, so that's 4/8 (or 1/2) cups cleaner to 3/8 gal water.
Answer D.
1) 2/3 cup cleaner to 1/2 gal water would imply this:
(2/3)/(1/2) = 2/3 * 2 = 4/3, telling us that it is either 4 cup cleaner to 3 gal water*.
2) Now we need to scale 4 cups down to 1/2 cup, which is basically just dividing by 8 (that is, 4/8 = 1/2). That means that if our amount of cleaner is smaller by a factor of 8, then the amount of water would also be smaller by a factor of 8:
Remember, it was 4 cups cleaner for 3 gal water, so that's 4/8 (or 1/2) cups cleaner to 3/8 gal water.
Answer D.
Re: To use a floor cleaner, two-thirds of a cup of cleaner must be mixed w
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30 May 2024, 16:45
30 May 2024, 16:45
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Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
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