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qwelly [4]
3 years ago
13

You talk to a friend who lives in a different state. She tells you that today it is 12° below zero where she lives. You tell her

it is 54° where you live. What is the difference in temperatures?
Mathematics
2 answers:
NikAS [45]3 years ago
8 0
So 12 below zero is -12. Then we take the 54 and instead of writing the problem as 54 + (-12) (Because that's just confusing) we can write our problem as 54 - 12. 54 - 12 = 42.
Xelga [282]3 years ago
4 0
The answer is a 66 degree difference
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Please help ASAP I am in desperate need
Vlad1618 [11]

Answer:

x = 9

TH = 12

Step-by-step explanation:

since TM is half of HM, the equation is:

2(21 - x) = 3x - 3

42 - 2x = 3x - 3

45 = 5x

x = 9

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TH = 21 - 9

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8 0
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Sales fall from 300 per week to 270 per week what’s the percentage change
weeeeeb [17]
Hi there! 

Your question: 

Sales fall from 300 per week to 270 per week what's the percentage change?

My answer:

The formula for calculating percent change is as follows: 

[(y2 - y1)/y1]*100=your percent change 

y2= first value 
y1=second value 

Plug the numbers in: 

[(300-270)/300]*100

[30/300]*100

0.1*100

10 

Therefore, the percent change is 10%

Hope this helps! Let me know if it's incorrect so I can fix it:)
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Step-by-step explanation:

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