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dsp73
2 years ago
9

Adittion of letters with powers

Mathematics
1 answer:
GREYUIT [131]2 years ago
8 0
To add or subtract with powers, both the variables and the exponents of the variables must be the same. You perform the required operations on the coefficients, leaving the variable and exponent as they are.
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When a number is decreased by 47%, the result is 20. What is the original number to the nearest tenth?
Naily [24]

Answer:

37.7

Step-by-step explanation:

n - 0.47n = 20

0.53n = 20

n = 37.7

4 0
3 years ago
Which ratio forms a proportion with 25/35 . A. 3/5 B. 15/21 C.24/34 D. 5/11
iogann1982 [59]
In order to find this out, we just needed to find out which one has the same smallest fraction

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15/21 . Divided this by 3 and we also will get 5/7 >> smallest fraction

So the answer would be  : B. 15/21 

hope this helps



3 0
3 years ago
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hoa [83]

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5 0
2 years ago
(3x +4y)2 is equal to
Nikolay [14]

Answer: 6x + 8y

Hope this helps!

4 0
2 years ago
Read 2 more answers
State the slope and y intercept of the graph of 9-x=2y
jasenka [17]
The equation of a line is given by y = mx + c; where m is the slope.
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8 0
3 years ago
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