Answer: 15 ft
Step-by-step explanation:
I took the test :)
Answer:
a= -3/7
b= -0.2
c = -2/8
Step-by-step explanation:
Let us start with assuming the amount of coffee worth $20 a pound to be "x" pounds.
Now she wants to mix "x" pounds of $20 coffee with 70 pounds of $90 coffee.
So the mixture would be (x + 70) pounds.
And the value of mixture would be = 20·x + (90)·(70) = (20x + 6300) dollars.
She want to sell this mixture at rate of $30 a pound. Her earning would be = 30·(x + 70) = (30x + 2100) dollars.
We know that the value of mixture would be equal to her earnings.
30x + 2100 = 20x + 6300
30x - 20x = 6300 - 2100
10x = 4200
x = 420
So, 420 pounds of $20 coffee would be used.
Volume=Length x Width x Height
It doesn't matter which one you multiply first; you will get the same answer.
The equation is 3 x 10 x 4
3 x 10 = 30
30 x 4 = 120
Make sure it's written as 120 feet^{3} [/tex].
