Answer:
x=16
y=8.00
8/16=0.5 (50 cents per apple)
y=0.5x+0
We are given that there are a total of 78 students. If we set the following variables:

Then, the sum of all of these must be 78, that is:

Since there are 15 in chemistry and physics and 47 in chemistry, we may replace that into the equation and we get:

Simplifying:

Now we solve for P by subtracting 62 on both sides:

Therefore, there are 16 students in physics
Step-by-step explanation:
4. y=-6/3x+3 (if you can simplify put y=-2x+3)
5. y=5/2x+1
6. y=-8/2x -5 (if you can simplify put y=-4x-5)
7. y=-6/6x+2 (if you can simplify put y=-x+2)
8. y=4/6x-4 (if you can simplify put y=2/3x-4)
9. y=6/5x+0
hope this helped!!!
Answer:
z=-4
Step-by-step explanation:
Simplify 10 + 2z + 2z to 10 + 4z
Add 10 to both sides
Simplify 10 + 4z + 10 to 4z + 20
Subtract 4z from both sides
Simplify -z - 4z − z− 4z to -5z − 5z.
Divide both sides by -5 − 5
Simplify 20 / 5 to 4