Answer: (C) divide by 1
<u>Step-by-step explanation:</u>
when dividing by x - 1, set the expression equal to zero to find the zero. That is actually what you are dividing by:
x - 1 = 0 ⇒ x = 1
so the number outside of the synthetic division symbol is 1.
Answer:
hmmmm. probably 2? I think it's two
They would have 2 because is it 10:1 just double it to be 20:2
Answer:
4
Step-by-step explanation:
1. if the mass of coffee worth $10 is 'x', then its worth is 10x, and the worth of the mixture is 5(x+20);
2. using the previous item it is possible to write the next equation:
5(x+20)=4*20+10*x; ⇒ x=4.
3. the required mass is 4 pounds.
