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Inga [223]
2 years ago
11

I am 21 years old my father is 3 times my age how old eill i be when my father is 40

Mathematics
1 answer:
gtnhenbr [62]2 years ago
4 0

Answer:

21+3 24×40 and you will get your answer

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Solve x2-8x=3 by completing the square. which is the solution set of the equation
Mazyrski [523]

we have

x^{2}-8x=3

Complete the square. Remember to balance the equation by adding the same constants to each side

x^{2}-8x+16=3+16

x^{2}-8x+16=19

Rewrite as perfect squares

(x-4)^{2}=19

(x-4)^{2}=19\\ (x-4)=(+/-)\sqrt{19} \\ \\ x1=4+\sqrt{19} =8.359\\ x2=4-\sqrt{19} =-0.359

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5 0
3 years ago
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Help me pls solve this
Serjik [45]

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Step-by-step explanation:


7 0
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Solve equation 3x-5y=7 5x-2y=-1 by elimination
kakasveta [241]

Answer:

x = -1, y = -2.

Step-by-step explanation:

Using the elimination method,

multiply the first eqn by 2 and the 2nd eqn by 5.

6x - 10y = 14

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Hence x = -1, y = -2.

7 0
3 years ago
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