Let:
x = Pounds of walnuts in the mix.
Each pound of walnuts costs $0.80. thus x pounds of walnuts cost 0.8x dollars.
Each pound of cashews costs $1.25 and the mix will contain 8 pounds of cashews, so the cost is 8*$1.25 = $10
The total cost of the mix is, therefore: 0.8x + 10 dollars.
We are also given the pound of mix costs $1.00 and we have a total of 8 + x pounds, so the total cost of the mix is 1*(8 + x) dollars.
Equating both costs:
0.8x + 10 = 1*(8 + x)
Operating:
0.8x + 10 = 8 + x
Subtracting x and 10:
0.8x - x = 8 - 10
Simplifying:
-0.2x = -2
Dividing by -0.2:
x = -2/(-0.2)
x = 10
Answer: 10 pounds
Answer D because you want to get the x by itself and in order to do this she needs to multiply by -4 so that one side only has x.
Answer:
12
Step-by-step explanation:
18 -6
12
Hope that this helps you and have a great day :)
4 is the answer because there are only 4 numbers greater than 10.Those are the people who ride bikes ore than 10 times.
P(z < 3)
From the normal distribution table,
P(z < 3) = 0.9987
