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Amiraneli [1.4K]
3 years ago
13

A number subtracted from 90 is 3 times that number

Mathematics
2 answers:
OleMash [197]3 years ago
7 0
90-n=3n hope this helps you
Harlamova29_29 [7]3 years ago
3 0
The equation is 90-n=3n but then to solve it you add n to both sides to get the variable on one side so then
90-n=3n becomes 90=4n and n=22.5
so the number is 22.5
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I need to know the answer
antoniya [11.8K]
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3 years ago
A woman making $1500 per month has her salary reduced by 10% because of sluggish sales. One year later, after a dramatic improve
UkoKoshka [18]

Answer:

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  • this is a +17% change from her original salary

Step-by-step explanation:

The multiplier of her original salary to her reduced salary is ...

  (1 - 10%) = 0.90

The multiplier of her reduced salary after her raise is ...

  (1 +30%) = 1.30

The multiplier of her raised salary from her original salary is ...

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Her salary after the 17% raise is ...

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8 0
3 years ago
Read 2 more answers
6 (r - 4) + r + 30 - 7r
GrogVix [38]
6r-24+r+30-7r (the we divide the regular numbers on one side and the others on the other side)Like this:
(6r+r-7r)+(-24+30)
(7r-7r)+6
And the final answer is 6
8 0
4 years ago
I donk know what to do
ohaa [14]
What’s the question?
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3 years ago
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