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35 votes
35 votes
A smaller number and a larger number add up to 8 and have a difference of 6. (Let X be the larger number and Y be the smaller number) A. 2x=8 x-y=6 B. 2x+2y=8 x-y=6 C. x+y=8 x-y=6D. x+y+8=0 x-y+6=0Which one is it A, B, C or D

User Falko Menge
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1 Answer

30 votes
30 votes

Answer

Option C is correct.

x + y = 8

x - y = 6

Step-by-step explanation

The larger number is x

The smaller number is y

The two numbers sum up to give 8

x + y = 8

The two numbers have a difference of 6

x - y = 6

Hope this Helps!!!

From the image sent, we can tell that the total ounces of solution is 28 ounces.

x + y = 28

Then, the second equation will be formed using the pure acid content

0.07x + 0.14y = 0.12 (28) = 3.36

So, the two equations are

x + y = 28

0.07x + 0.14y = 3.36

We can then solve this simultaneous equation and obtain that

x = 8 ounces, y = 20 ounces

Hope this Helps!!!

User Yena
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