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nirvana33 [79]
3 years ago
8

last year she had 12 records in her collection. now she has 15. what is the percent increase of her collection

Mathematics
1 answer:
pochemuha3 years ago
7 0

Answer:

Her percent increase would be 25%.

Step-by-step explanation:

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I need working out and answers for the following:
LenaWriter [7]
A. 4x - 3 = 2x + 7
4x - 2x = 7 + 3
2x = 10
x = 5

B. 2x + 6 = 7x - 14
2x - 7x = - 14 - 6
-5x = -20
x = 4

C. 2( x + 3) = x - 4
2x + 6 = x - 4
2x - x = -4 - 6
x = -10

D.4 ( 5x - 2) = 2( 9x + 3)
20x - 8 = 18x + 6
20x - 18x = 6 + 8
2x = 14
x = 7

E.4x - 1/2 = x - 7
4x - x = -7 + 1/2
3x = (-14 + 1)/2
3x = -13/2
x = -13/6

F. 3x + 2 = 2x + 13/3
3x - 2x = 13/3 - 2
x = (13 - 6)/3
x = 7/3


Hope This Helps You!
4 0
3 years ago
How many minutes are in m hours? Which expression represents this?
sveta [45]
60m there's 60 minutes in an hour.
7 0
3 years ago
Read 2 more answers
Help me please i so need help
elena55 [62]

Answer:

9

It is 9 because 9 is the only number that multiplied by itself is 81.

5 0
2 years ago
Read 2 more answers
Solve: -1/4 (2x + 8) = -6​
vredina [299]

Answer:

x = 8

Step-by-step explanation:

-1/4 (2x + 8) = -6​

Multiply both sides by -4.

2x + 8 = 24

Subtract 8 from both sides.

2x = 16

Divide both sides by 2.

x = 8

3 0
3 years ago
In how many ways can a designer chose from 3 summer dresses,2 purses, a hat, 3 scarfs, 2 belts if she chooses one of each?
butalik [34]

Answer:

I'm pretty sure it's 32

Step-by-step explanation:

hope this helpsb

4 0
3 years ago
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