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balu736 [363]
3 years ago
5

What is 7/10+20/100?

Mathematics
2 answers:
Firdavs [7]3 years ago
8 0
9/10. make the bottom numbers the same to add fractions. you can do that by multiplying 7/10 by 10/10.

70/100 + 20/100 = 90/100

90/100 = 9/10

you can also reduce 20/100 to 2/10.

7/10 + 2/10 = 9/10
daser333 [38]3 years ago
5 0
9/10    that's the answerrrrrrrrrrrrrrr                                                                                                                                         
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Answer:

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Step-by-step explanation:

(5m)² - (2n-3m)³ if m=-3 and n=5

= (5 * (-3))^2 - (2 * 5 - 3 * (-3))^3

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3 years ago
7) Solve the following system of equations below algebraically using substitution.
Pani-rosa [81]

Answer:

x = 3.25

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Step-by-step explanation:

In order to Solve the following system of equations below algebraically using substitution method we say that;

let;

8x - 4y = 7 ..................... equation 1

x + y = 8.......................... equation 2

from equation2

x + y = 8.......................... equation 2

x = 8 - y.............................. equation 3

substitute for x in equation 1

8x - 4y = 7 ..................... equation 1

8(8-y) - 4y = 7

64-8y-4y=7

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collect the like terms

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put y = 4.75 in equation 3

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to check if your answer is correct, put the value of x and y in either equation 1 or 2

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8 0
3 years ago
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