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Alexeev081 [22]
2 years ago
5

HELP PLEASE!! i just need #8 through #10

Mathematics
1 answer:
Nady [450]2 years ago
6 0

Answer:

ok hi 4___________$_______

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The sum of two numbers is 49 and the difference between these two numbers is 9. What are these two numbers?​Shown working out pl
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Let numbers be x and y

ATQ

  • x+y=49---(1)

  • x-y=9---(2)

Adding both

\\ \sf\longmapsto 2x=58

\\ \sf\longmapsto x=\dfrac{58}{2}

\\ \sf\longmapsto x=29

Now putting value in eq(2)

\\ \sf\longmapsto x-y=9

\\ \sf\longmapsto 29-9=y

\\ \sf\longmapsto y=20

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3 years ago
Is the following a function? (plz help ;-;)
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