Your equation is:
x² + y² = 15
Answer:
3.825 kg apples.
Step-by-step explanation:
Let x kg be the amount of apples stand owner had initially.
We have been given that during the first hour of operation the farm stand owner sold 15% of the apples he had. Then the amount of sold apples will be:
On the second hour he sold 20% of the remaining apples. So the amount of sold apples on the second hour will be 20% of 0.85x.

During the second hour 25.5 kg of apples were sold, so we can set up an equation as:



So, stand owner had initially 150 kg of apples.

On the third hour he sold 25% of the remaining apples. So the amount of sold apples on the 3rd hour will be 25% of 0.68x

As remaining apples were sold 5% more each following hour.
Let us substitute x=150 into above equation we will get,
Therefore, 3.825 kg of apples were sold during the 4th hour.
Answer:
b = 1.778279, −1.778279
Step-by-step explanation:
Set the equations to equal each other:
-2x²+1=-2x+1
Solve for x:
-2x²+1=-2x+1
-2x²+2x+1=-2x+2x+1
-2x+2x+1-1=1-1
-2x²+2x=0
2x (-x+1)=0
2x=0 and -x+1=0
2/2x=0/2 -x+x+1=0+x
x=0 1=x
There are two solutions, x=0,1
Answer:
8 piles for basketball
4 piles for football
3 piles for baseball
Step-by-step explanation:
1. Find the GCF of all three #s
2. 8 is the GCF, so divide each # by 8
3. You get the # of piles for each type of card