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Aleks [24]
3 years ago
8

2 3/4 - 3/7 10 points

Mathematics
2 answers:
yuradex [85]3 years ago
6 0

Answer:

2 3/4

<u> - 3/7</u>

 3 5/28

Step-by-step explanation:

First, Find the common denominator of 4 and 7 which is 28. 28 will be the denominator of your difference.Then, now time to multiply, now you multiply 7 by 21 because you multiplied 7 by 4  to get 28. You do the same for the others one but a bit different because this time you multiply 4 by 3= 12 now you have 21/28 and 12/28. Now you add 21 and 12 not 28 because you don't multiply denominators in this case. After that you get 33/28, this is an improper fraction so you divide. 28 goes into 33 once so you have a whole number 1 then you have 5 left over making it the numerator. Result 1 5/28, because you have the whole number 2 left from the equation you add it ending up with 3 5/8

Hope this helps :D !!    

alexira [117]3 years ago
4 0

Answer:

It only gives five points.

Step-by-step explanation:

I just wanted to let you know.

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kvv77 [185]

Answer:

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Step-by-step explanation:

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6 0
2 years ago
Help please<br>working too please!!!!.?​
Alenkinab [10]

Step-by-step explanation:

(1) 4mn × 6mp × 3mnp

= 4 × 6 × 3 ( mn × mp × mnp)

= 72 × (m³n²p²)

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3 0
3 years ago
How to solve the problem 3.2d-4d=2.3d+3
Liula [17]
3.2d - 4d = 2.3d + 3...simplify by combining like terms
-0.8d = 2.3d + 3....subtract 2.3d from both sides
-0.8d - 2.3d = 3 ...simplify again
-3.1d = 3...divide both sides by -3.1
d = 3/ -3.1
d = - 0.97

or
3.2d - 4d = 2.3d + 3....multiply the equation by 10, gets rid of the decimals
32d - 40d = 23d + 30....subtract 23d from both sides
32d - 40d - 23d = 30....simplify
-31d = 30...divide by -31
d = -30/31
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5 0
3 years ago
What type of mixture is a liquid in a solid?<br> А<br> B<br> foam<br> gel<br> С<br> smoke<br> alloy
Free_Kalibri [48]
Alloy is the answer sir
6 0
3 years ago
Consider the following sets of sample data: A: $29,400, $30,900, $21,000, $33,200, $21,300, $24,600, $29,500, $22,500, $35,200,
Lana71 [14]

Answer:

CV for A = 21.8%

CV for B = 15.5%

Step-by-step explanation:

The formula for coefficient of variation is:

CV = Standard Deviation / Mean

So,

For A:

Mean = Sum/No. of items

= 391300/14

=$27950

and

SD = $6085.31

CV for A = 6085.31/27950 * 100

=21.77%

Rounding off to one decimal

CV for A = 21.8%

For B:

Mean = Sum/No. of items

= 43.58/11

=3.96

and

SD = 0.615

CV for B = 0.615/3.96 * 100

=15.53%

=15.5% ..

6 0
3 years ago
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