Step-by-step explanation:
do 21×3.14= 65.94
then divide by 2 since its a semicircle
equals: 32.97
than find perimeter altogether
21+28+28+32.97= 109.97ft
18 dollars would be the answer
Let
One Number = x
Second Number =x-10
Third Number=x/2
Sum of three numbers is 50
x+x-10+x/2=50
2x-10+x/2=50
Multiply by 2 both sides
2*(2x-10+x/2)=50*2
4x-20+x=100
5x=100+20
5x=120
x=120/5
x=24
One number = x=24
Second number =x-10=24-10=14
Third number= x/2=24/2= 12
Answer:
m=5
Step-by-step explanation:
Y2-Y1
m= ______
X2-X1
X1= 3
Y1= 15
X2= 9
Y2= 45
45-15 30
____= ____
9-3 6
30/6=5
m=5