Answer: 24 cups.
Step-by-step explanation:
Let be "x" the amount of cups of peaches that Fred will need to make 60 cups of fruit salad.
According to the information given in the exercise, you know that the ratio of cups of peaches to cups of cherries is the one shown below:

Which can also be written as a fraction:

Then, if he uses 2 cups of peaches and 3 cups of cherries, he will get 5 cups of fruit salad.
Knowing the above, you can set up the following proportion:

Now you must solve for "x" in order to find its value. This is:

Answer:
x = -7
Step-by-step explanation:
The vertical line through (-7, -5) will be of the form ...
x = constant
To make the line go through the given point, the constant must be the x-coordinate of that point:
x= -7
Answer:
Step-by-step explanation:
Here, you should find the area of the cylinder. Remember the superficial area of a cylinder is
( )
Since we have r= 4 and h=7, we get

To find the cost you only need to multiply area A by 0.08. That is

Answer:
ET = 80/A^2
Step-by-step explanation:
First, isolate the variables that you need, which is E and T, using the two equations you were given.
EA = 8
E = 8/A (divide A on both sides to isolate E)
AT = 10
T = 10/A (divide A on both sides to isolate T)
Now, substitute.
ET --> (8/A) x (10/A) = 80/A^2