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natta225 [31]
3 years ago
5

Solving the following system using the elimination method. 2x+y=-9 2x-5y=-3

Mathematics
2 answers:
leonid [27]3 years ago
8 0
Broke MB did he ryghdjd off rijekrjrirjriirjt
Stells [14]3 years ago
7 0

Answer:

x = -57/14, y = -6/7

Step-by-step explanation:

2x + y = -9

-(2x - 5y = -3)

--------------------   (Add the two equations together)

7y = -6

y = -6/7

2x - 6/7 = -9

2x = -57/7

x = -57/14

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Of the three digit integers greater than 700, how many have two digits that are equal to each other and the remaining digit diff
vodomira [7]

Answer:

80.

Step-by-step explanation:

Three digit number can only have three patterns

A. All digits are distinct

B. Two digits are same and third is different

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We need to calculate B

that is B= Total- A-C

Total numbers from 700 to 999= 299.

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So, 299 -216-3= 80.

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Answer:

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