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noname [10]
2 years ago
10

How to do you divide fractions? I forgot???

Mathematics
2 answers:
Butoxors [25]2 years ago
7 0
You have to use the reciprocal. for example, 4/5 divided by 1/3
you would leave the dividend the same but flip the divisor. you would change it to a multiplication sign. 4/5 times 3/1
then multiply straight across. hope i helped

Valentin [98]2 years ago
7 0
Hi!

Let's say that we have 5/8 and 3/4 and we have to divide them . One thing that is very important when dividing fractions is knowing the meaning of reciprocal.
When we are dividing fractions we use the reciprocal, for example the reciprocal of 3/4 is 4/3 .

5/8 divided by 3/4 = 5/8 divided by 4/3

Now that we have the reciprocal of 3/4 , we multiply both fractions . We don't "divide them " .
So it's something like this

5/8 times 4/3=20/24

Just find the reciprocal and multiply !


Hope it helps and have a wonderful day!

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Answer:

Step-by-step explanation:

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6 0
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Many inequalitys have -25 in their solution sets.

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2 years ago
) A watershed experiences a rainfall of 8 inches. What is the runoff volume when the curve number is 80
finlep [7]

Answer:

5.625 inches

Step-by-step explanation:

Given that:

Total Rainfall in inches (P) = 8 inches

The runoff volume (in inches) Q = ???

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Recall that: The runoff volume can be calculated by using the formula:

Q = \dfrac{(P-0.2S)^2}{(P+0.8S)}    for P > 0.2S

Q = 0                     for P < 0.2S

S = \dfrac{1000}{CN}-10

where:

curve number CN = 80

S = \dfrac{1000}{80}-10

S = 2.5 inches

Since the rainfall (P) is greater than 0.25

Then:

Q = \dfrac{(P-0.2S)^2}{(P+0.8S)}  

Q = \dfrac{(8-0.2(2.5))^2}{(8+0.8(2.5))}

Q = \dfrac{(8-0.5)^2}{(8+2)}

Q = \dfrac{(7.5)^2}{(10)}

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Q = 5.625 inches

Thus, the runoff volume = 5.625 inches

4 0
3 years ago
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Step-by-step explanation:

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When we test out each of the points, we can see that only:

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