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viva [34]
2 years ago
7

NEED HELP ASAP

Mathematics
1 answer:
Roman55 [17]2 years ago
3 0

Answer:

d-0.2d

Step-by-step explanation:

took the test bum

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Increase 18 by a half
chubhunter [2.5K]

Answer:

36

Step-by-step explanation:

if we were decreasing it would be 9 but if we are increasing it, it would be 36

just multiply by 2 or divide by 2

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3 years ago
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Quadratic equation
Murrr4er [49]

Answer:

<h2>            46</h2>

Step-by-step explanation:

x          -  age of a son three years ago

3x        -  age of a father three years ago

x + 3      -  age of the son now

3x + 3       -  age of the father now

x + 3 + 5       -  age of the son in five years time

3x + 3 + 5       -  age of the father in five years time

in five years time, the father will be twice as old as his son, so:

3x + 3 + 5 = 2(x + 3 + 5)

3x + 8 = 2x + 16

3x - 2x = 16 - 8

  x = 8

x + 3 + 4       -  age of the son in four years time

8 + 3 + 4 = 15

3x + 3 + 4       -  age of the father in four years time

3×8 + 3 + 4 = 31    

the sum of their ages in four years time:

15 + 31 = 46

8 0
3 years ago
Simplify the following expression:<br> 12a+9b2a-13a2b2+4ab2-16a
Rudiy27
12a+9b^2a-13a^2b^2+4ab^2-16a= \\ =12a-16a+9ab^2+4ab^2-13a^2b^2= \\ =-4a+13ab^2-13a^2b^2= \\ =a(-4+13b^2-13ab^2)
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Given the equation of the line y=2.5x + 1, what is the x-coordinate, when x=10
stich3 [128]

Answer:

“We need to accept that we won’t always make the right decisions, that we’ll mess up royally sometimes – understanding that failure is not the opposite of success, it’s part of success.” – Arianna Huffington

Step-by-step explanation:

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What is 7/11 equivalent to
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Answer:308? Good luck

Step-by-step explanation:

5 0
2 years ago
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