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Shkiper50 [21]
3 years ago
5

In the morning, Marco sold 12 cups of lemonade for $3. By the end of the day, he had earned $9. How many cups of lemonade did he

sell in all?
Kaycee wrote the proportion 12/3 =9/c for this situation.
Identify the error and give two ways to write the proportion correctly.
Mathematics
2 answers:
Dmitry [639]3 years ago
7 0
In kaycee's she wrote 12/3 = 9/c, which was supposed to be 12/3 = c/9 or 3/12 = 9/c

The two ways to write the proportion are,
12/3 = c/9
or 3/12 = 9/c
kotegsom [21]3 years ago
4 0

Answer:

Kaycee did not keep lemonade and dollars in corresponding positions in the ratios of the proportion. The proportion should be 12/3=c/9 or it could be written 3/12=9/c. Dollars should be in the same position and cups should be in the same position across ratios.

Step-by-step explanation:

10000000000% sure

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35 - 11 = 24 \\ 24  \div 4 = 6
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4 years ago
What is the common denominator of StartFraction 1 Over a EndFraction StartFraction 1 Over b EndFraction in the complex fraction
stepladder [879]

The common denominator is 1

Given the expression:

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Find the LCM of the numerator to have:

  • \dfrac{\frac{b-a}{ab} }{\frac{1}{a} \frac{1}{b} }

Simplify both the numerator and the denominator to have:

= \dfrac{\frac{b-a}{ab} }{\frac{1}{ab} }\\= \frac{b-a}{ab} \times ab\\=\frac{b-a}{1} \times 1  \\=\frac{b-a}{1}

From the result, we can see that the common denominator is 1

Learn more about fractions here: brainly.com/question/17743912

7 0
3 years ago
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Answer:

see above

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7 0
3 years ago
Write the sum of 18+27 as the product of their gcf and another sum
Georgia [21]
Factors of 18: 1; 2; 3; 6; 9; 18

Factors of 27: 1; 3; 9; 27

GCF(18; 27) = 9

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A runner is 6/8 mile from the finish line. If she can travel 3/8 mile per minute, how long will it take her to finish the race?
Klio2033 [76]

Answer:

it will take her 40 seconds to finish the race.

3/8 per minute, would make it 1/8 every 20 seconds. since she only has 2/8 of a mile left to go, 20 seconds +20 seconds = 40 seconds

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Step-by-step explanation:

I hope this helps :)

6 0
3 years ago
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