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just olya [345]
3 years ago
12

X/3 in a fraction -4=5

Mathematics
1 answer:
Elena-2011 [213]3 years ago
7 0
X/3 - 4 = 5
x/3 = 9
x=27
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Help! Multiplying rational expressions
Ber [7]
I worked them out on paper. I hope this helps. There’s a picture of the work.

8 0
3 years ago
What happens to the mean of the data set shown below if the number 20 is added to the data set?
defon

Answer:

This shows that the mean increases by 2.95

Step-by-step explanation:

Assume the given data is 2, 5, 6, 8

Mean = 2 +5+6+8/4

Mean = 21/4

Mean = 5.25

If number 20 is added, the data becomes 2, 5, 6, 8, 20

New mean = 2 +5+6+8+20/4

New mean = 41/5

New mean = 8.2

Taking the difference in the mean:

Difference = 8.2 - 5.25

Difference = 2.95

This shows that the mean increases by 2.95

<em>NB: The data used was assumed since we are not given any data in question</em>

<em></em>

4 0
3 years ago
Use compatible numbers to solve the problem 488 ÷ 62.A. 450 ÷ 50 = 9B. 434 ÷ 62 = 7C. 490 ÷ 70 = 7D. 480 ÷ 60 = 8
ipn [44]

Option D is correct. The required compatible number is 480 ÷ 60 = 8

Compatible numbers are numbers that have a close approximate to a given value

Given the expression  488 ÷ 62

The compatible number for 488 is 480

The compatible number for 62 is 60

Using these compatible numbers to solve the expression will give:

488 ÷ 62

= 480 ÷ 60

= 480/60

= 48/6

= 8

Hence the correct option will be 480 ÷ 60 = 8

Learn more here: brainly.com/question/22595072

8 0
3 years ago
50% of 80<br> 50% of 48<br> 50% of 15<br> 25% of 120<br> 25% of 90
Semenov [28]
1. 40
2. 24
3. 7.5
4. 30
5. 22.5
3 0
3 years ago
I need some help again!!!
djyliett [7]

Answer:

48cm

Step-by-step explanation:

take width of rectangle to be=xcm

Length will be 3x

Area of rectangle=length × width

A=3x × x =3x²

3x²=108

x²=108/3=36

x²=36

x=√36=6cm

substitute

lenth=3x=3×6=18

width=x=6cm

perimeter=2l+2w

p=2×18 + 2×6

p=36+12=48cm

4 0
3 years ago
Read 2 more answers
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