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Re: A certain recipe calls for 2 cups of sugar and cups of flour
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31 May 2017, 07:24
Expert Reply
Explanation
A ratio is a part-to-part relationship, but it can be expressed and manipulated just like a fraction—in this case, \(3 \div 3\frac{1}{2}\). None of the answers have a fractional value in the denominator, so you need to find a multiplier that will get rid of the fraction. In this case, just doubling the entire ratio will do the trick:
Re: A certain recipe calls for 2 cups of sugar and cups of flour
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06 Jun 2017, 16:19
1
sandy wrote:
A certain recipe calls for 2 cups of sugar and 3 1/2 cups of flour. What is the ratio of sugar to flour in this recipe?
A. \(\frac{3}{10}\) B. \(\frac{2}{5}\) C. \(\frac{4}{7}\) D. \(\frac{4}{5}\) E. \(\frac{6}{7}\)
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sugar/flour = (2)/(3 1/2) Check answer choices....not there. We must rewrite (2)/(3 1/2) as an EQUIVALENT RATIO Take (2)/(3 1/2) and multiply top and bottom by 2 to get: 4/7
Re: A certain recipe calls for 2 cups of sugar and cups of flour
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18 Sep 2017, 01:54
Carcass wrote:
IlCreatore wrote:
I am not sure this is the right place to ask, but, when it is written \(3\frac{1}{2}\) does it mean \(3.5\) or \(3*\frac{1}{2}=\frac{3}{2}\)?
The second one you said or 1.5.
Hope now is clear.
regards
Yes but in that case how can the answer be \(\frac{4}{7}\)? If \(3\frac{1}{2}\) means 1.5 then the ratio is \(\frac{3}{4}\) which is not even among the answers
A certain recipe calls for 2 cups of sugar and cups of flour
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26 Jul 2024, 06:45
1
Expert Reply
Yes sir . you are correct. often my mind think in a shortest way because it is something that happens when you repeat the same thing over and over again and instead the students need a more clear and slowest approach
The ratio of cups sugar to cups of flour is \(\dfrac{2}{3 \frac{1}{2}}=\dfrac{2}{\frac{7}{2}}=2*\frac{2}{7}=\frac{4}{7}\)