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Margaret [11]
3 years ago
5

Choose Yes or No to tell if the fraction

Mathematics
1 answer:
Ivahew [28]3 years ago
8 0

Answer:

adding \frac{3}{5} in the blank space makes the equation true.

Step-by-step explanation:

i) \dfrac{7}{20}  + \dfrac{3}{5}  = \dfrac{7}{20} + \dfrac{12}{20} = \dfrac{7 + 12}{20} = \dfrac{19}{20}

ii) From the above equation we see that adding \dfrac{3}{5} in the blank space makes the equation true.

iii) first the fraction of  \dfrac{3}{5}  is multiplied by 4 on top and bottom which gives us the value of \dfrac{12}{20} which now has the same denominator as \dfrac{7}{20} and so the numerator of the two fractions can be added which gives the result \dfrac{19}{20} which makes the equation true.

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in your class 7 students do not receive weekly allowance, 5 students receive $3, 7 students receive $5, 3 students receive $6, a
Gemiola [76]
The mean is the average of a set of numbers.
To find the mean of this data, form a number set by gathering all the numbers.
We need to find the average weekly allowance. To do this, each number in the number set should be the different allowances, and their quantity is the number of students who earned that allowance.
In this case, there would be seven 0s, five 3s, seven 5s, three 6s, and two 8s.

The numbers are:
0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 8, 8

To find the mean of these numbers, add then together then divide by the total amount of numbers.

This means doing:
(0 + 0 + 0 + 0 + 0 + 0 + 0 + 3 + 3 + 3 + 3 + 3 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 6 + 6 + 6 + 8 + 8) / 7 + 5 + 7 + 3 + 2

An easier formula could be used by using multiplication.
This would be [7(0) + 5(3) + 7(5) + 3(6) + 2(8)] / 24
This is a lot easier to read!
Now to solve it.
7 • 0 = 0
5 • 3 = 15
7 • 5 = 35
3 • 6 = 18
2 • 8 = 16
0 + 15 + 35 + 18 + 16 = 84
84 / 24 = 3.5

The mean is 3.5, or $3.50
This means that the average weekly allowance amongst these students is $3.50.

Hope this helps!
4 0
3 years ago
Which is an exponential decay function
Pani-rosa [81]

Answer:

Letter A is your answer

Step-by-step explanation:

mark me brainliest

5 0
2 years ago
Help!!!!!!!!!!!!!!!​
insens350 [35]

Answer:

First Option.

Step-by-step explanation:

I recommend using the app Photomath for these types of math problems. It gives a detailed explanation as to how you should solve them.

7 0
3 years ago
Through: (−2, 3) and (0, 2)
Nostrana [21]

Answer:

m= -1/2

Step-by-step explanation:

3 0
3 years ago
Solve (get the variable by itself): m / (-4) = -2.95
Tems11 [23]
I hope this helps you

6 0
3 years ago
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