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Ghella [55]
1 year ago
10

Jamaar helped in the community garden for \dfrac{21}{10}

Mathematics
1 answer:
Oduvanchick [21]1 year ago
6 0

Using proportions, it is found that 21/10 divided by 2 and 4/5 represents the number of shifts that Jammar worked.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

For this problem, we have that following<em> rule of three</em>:

One shift - 2 and 4/5 hours.

x shifts - 21/10 hours.

Applying cross multiplication, the number of shifts is found as follows:

2 4/5x = 21/10.

x = (21/10)/(2 4/5)

Hence 21/10 divided by 2 and 4/5 represents the number of shifts that Jammar worked.

More can be learned about proportions at brainly.com/question/14398287

#SPJ1

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If the product of two positive fractions a and b is 15/56, find three pairs of possible values for a and b
Andrews [41]

Answer:

First possible pairs = (3/7)*(5/8) = 15/56

second possible pairs = (3/4)*(5/14) = 15/56

third possible pairs = (1/2)*(15/28) = 15/56

Step-by-step explanation:

According to the question,

a x b = 15/56

three possible pairs will be as follows:

Before proceeding to make possible pairs, we have to know the prime factorization of the numbers -

15 = 1, 3, 5, 15

56 = 1, 2, 4, 7, 8, 14, 28, 56

As we need three possible pairs, we have to check which pairs take us to 15/56. Again, since the fraction is positive, therefore, the fractions will be proper. Therefore, 3/2, or 5/4 will not be counted. Therefore,

First possible pairs = (3/7)*(5/8) = 15/56

second possible pairs = (3/4)*(5/14) = 15/56

third possible pairs = (1/2)*(15/28) = 15/56

fourth possible pairs = (3/8)*(5/7) = 15/56

So, we can get those four possible pairs. Among those, first 3 pairs are different. Therefore, those are possible pairs.

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3 years ago
6% as ratio in simplest form.
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Answer:

3 : 50

Step-by-step explanation:

6% = 0.06

0.06 = 6/100

6/100 = 3/50

3/50 = 3 : 50

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