Answer:
15
Step-by-step explanation:
8+8 would be the doubles and that would equal 16.
Then take one away from 16 and that would equal 15
4 1/4 - 3 3/4 = 1/2
Sarah picked 1/2 pound more than Nathan
Answer:
The answer is B
Step-by-step explanation:
I got it right
Step-by-step explanation:
Number 1
![log_{10}( {x}^{2} - 3x + 12 ) = 1 \\ log_{10}( {x}^{2} - 3x + 12 ) = log_{10}(10) \\ cancelling \: both \: logs \: we \: have \\ {x}^{2} - 3x + 12 = 10 \\ {x}^{2} - 3x + 12 - 10 = 0 \\ {x}^{2} - 3x + 2 = 0 \\](https://tex.z-dn.net/?f=%20log_%7B10%7D%28%20%7Bx%7D%5E%7B2%7D%20%20%20-%203x%20%2B%2012%20%29%20%20%3D%201%20%5C%5C%20%20log_%7B10%7D%28%20%7Bx%7D%5E%7B2%7D%20-%203x%20%2B%2012%20%29%20%20%3D%20%20log_%7B10%7D%2810%29%20%20%5C%5C%20cancelling%20%5C%3A%20both%20%5C%3A%20logs%20%5C%3A%20we%20%5C%3A%20have%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20-%203x%20%2B%2012%20%3D%2010%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20-%203x%20%2B%2012%20-%2010%20%3D%200%20%5C%5C%20%20%20%7Bx%7D%5E%7B2%7D%20%20-%203x%20%2B%202%20%3D%200%20%5C%5C%20)
![solve \: \: by \: factorisation \: method \\ {x}^{2} - 2x - x + 2 \\ {x}(x - 2) \: - 1(x - 2) \\ (x - 2)(x - 1) \\ therefore \: x = 2 \: or \: x = 1](https://tex.z-dn.net/?f=solve%20%5C%3A%20%5C%3A%20by%20%5C%3A%20factorisation%20%5C%3A%20method%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20-%202x%20-%20x%20%2B%202%20%5C%5C%20%20%7Bx%7D%28x%20-%202%29%20%5C%3A%20%20-%201%28x%20-%202%29%20%5C%5C%20%28x%20-%202%29%28x%20-%201%29%20%5C%5C%20therefore%20%5C%3A%20x%20%3D%202%20%5C%3A%20or%20%5C%3A%20x%20%3D%201)
Number 2