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Leona [35]
2 years ago
15

I'LL MARK BRAINLIEST IF U HELP

Mathematics
1 answer:
neonofarm [45]2 years ago
3 0

Answer:

3 times

Step-by-step explanation:

heaviest : 9/10 kg.. 0.9kg

lightest : 3/10 kg.... 0.3kg

0.3/0.9 = 1/3

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3(x+4)=2x+6 can you help me solve this
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x=-6

Step-by-step explanation:

3(x+4)=2x+6

3x+12=2x+6

x+12=6

x=-6

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Use the quadratic formula to solve 2x^2-5x-12. Show your work. Then describe the solution.
Mariulka [41]

Answer:

x = 4, -1.5

Step-by-step explanation:

2x² - 5x - 12 = 0

2x² - 8x + 3x - 12 = 0

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The graph cuts the x-axis at x = 4 and x = -1.5

4 0
3 years ago
george is 2 years older then sam and sam is 3 years older then alex. the total of their ages is 35. write and solve the equation
Iteru [2.4K]
Let Alex (the youngest) be n
Sam is n+3 because he is three years older
George is n+5  because he is 2 years older than Sam (n+3  +2)  = n +5

All their ages summed = 35
So 
n + n +3 + n + 5 = 35
Combine like terms
3n + 8 = 35
<u>      - 8    -8  </u>   subtract 8 from both sides of the equation
<u>3n </u>      =<u> 27</u>
3             3   divide both sides by 3 and get n= 9  
So Alex is 9
Sam is 12 since he is 3 years older than Akex
George is 14 since he is 2 years older than Sam

9 + 12 + 14 = 35
6 0
3 years ago
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