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Maksim231197 [3]
3 years ago
11

Please help me answer this math question 1/2(b-12)

Mathematics
2 answers:
Sever21 [200]3 years ago
4 0

we have given an equation 1/2(b-12)

we need to simplify the given equation.

the distributive property is used here a(b+c)=ab+ac

1/2(b-12)=\frac{b}{12} -\frac{12}{2}

if we simplify the terms

we get \frac{b}{2} -\frac{6}{1}.

Digiron [165]3 years ago
3 0

1 / 2 (b - 12) ===> b / 2 - 6

Steps:

1 / 2 (b - 12)

Apply the Distributive Law: a ( b - c ) ===> ab - ac

a ===> 1 / 2; b ===> b; c ====> 12

1 / 2 b - 1 / 2 * 12

1 / 2 b - 12 * 1 / 2

Simplify:

1 / 2 b - 12 * 1 / 2

b / 2 - 6

1 / 2 b - 12 * 1 / 2

1 / 2 b ===> b / 2 ===> 1 / 2 b

Multiply Fractions:

a ( b ) / c ===> a( b )/c

1 * b / 2

Multiply:

1 * b ===> b

b / 2

12 * 1 / 2 ===> 6

12 * 1 / 2

Multiply Fractions::

a ( b ) / c =====> a(b)/c

1(12)/2

Multiply the numbers:

1 * 12 =====> 12

12 / 2

Divide numbers:

12 / 2 ======> 6

6

Answer: b / 2 - 6

Therefore, 1 / 2 ( b - 12 ) =========> b / 2 - 6

Hope that helps!!!!! : )

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MrMuchimi
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this is really just intuition. you can go either way as long as you back up what you say.
either you think hunter would be faster because he starts out with a lot more money, or you think amado would be faster because he earns a lot more.

part b:
let x be the number of hours hunter works, and y the number that amado works.
they both need to earn 600 dollars.

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x = 60

amado's money is modelled by 12y
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12y = 600
y = 50

hunter would need to work 60 hours to make enough money, but amado would only need to work 50, so hunter will take longer.

then say whether this agrees with what you guessed in part a
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Over [174]
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