2 years ago

How u solve (-5,-20),(9,9)m=

Mathematics

1 answer:

Oxana [17]2 years ago

8 0

Answer:

-2.75

Step-by-step explanation:

Hope this helps!!

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3 years ago

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nataly862011 [7]

The given system of equation is

$-9x+2y=-1..........(1)\\ \\ 18x-7y=17...........(2)\\ \\ \text{To solve the system of equation by elimination, multiply the first equation by 2 }\\ \text{and thereafter add equation 1 and 2 together we get }\\ \\ -18x+4y=-2\\ 18x-7y=17\\ ------\\ -3y=15\\ ------\\ \\ y=-5\\ \text{Now substitute the value of y in equation 1 we get }\\ \\ -9x-10=-1\\ \\ -9x=-1+10\\ \\ -9x=9\\ \\ x=-1\\ \\ \text{Hence the solution to the given system of equation is }\\ \\ x=-1, y=-5\\$

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2 years ago

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A circus ticket costs $7. On weekdays, the circus sells tickets at a 15% discount. What is the amount of the discount? How much

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How u solve (-5,-20),(9,9)m=​

How u solve (-5,-20),(9,9)m=