Answer:
The wood for 7.50!
Step-by-step explanation:
You are trying to find the unit rate in this situation!
It's simple, Cost ÷ Amount/Weight
13.65 ÷ 7 = 1.95
7.50 ÷ 5 = 1.50
Clearly, the wood for 7.50 is the better buy!
4w-7k=28
Move variable to the right to get -7k=28-4w
Divide both sides by -7
k= -4+4/7w
Answer:
B?
Step-by-step explanation:
Im pretty sure it would be B because if you subtract 4-2.4 it equals 1.6, same for 9-5.4, the only difference is that it would be 3.6. Sorry if I'm wrong, I tried. :)
The answer or number that you are looking for is -6.4. You can get this by dividing 3 by 5 which is equal to 0.6. Next you would subtract 7 to reverse the act of having added it. This will give you -6.4 which is what you are looking for.