Answer:
Step-by-step explanation:
4.5 x 3 = 13.5 mi^2
1/2 and -1/2
hope it helps, brianliest pls
X=20
3(x-1)-8=4(1+x)+5
1. Distribute
3x-3-8= 4+4x+5
2. Combine like terms
3x-11=4x+9
3. Add 11 or subtract 9 to both sides
3x-11+11=4x+9+11
or
3x-11-9=4x+9-9
3x=4x+20
or
3x-20=4x
If you did the first step then you subtract 4x from both sides
3x-4x=4x+20-4x
-x=20
Then you would divide by a negative 1 because there is an imagery 1 in front of the x.
-x/-1=20/-1
x=-20
If you did the second way then you would subtract 3x from both sides
3x-20-3x=4x-3x
-20=x
And you get the same answer for both ways
Answer:
#1 4) 15 boys to 40 girls #2 1) 1, 3, 4, 6 #3 1) 3/5
Step-by-step explanation:
#1 3:8 Multiply both sides of this ratio by 5 15:40
#2 1, 3, 4, 6 These statements are all true.
#3 9/15 Divide both numbers by 3 3/5
Answer:
Exact Circumference = 3π feet
Approximate Circumference = 9.42 feet
Exact Area = 2.25 π ft²
Approximate Area = 7.07 ft²
Step-by-step explanation:
Diameter = d = 3 feet
Radius = r = 1.5 feet
<u><em>Circumference:</em></u>
Outline of the pit is the circumference.
=> Circumference = 
Where d = 3 feet
=> <u>Exact Circumference = 3π feet</u>
=> <u>Approximate Circumference = 9.42 feet</u>
<u><em>Area:</em></u>
Area of Circle = πr²
Area = π(1.5)²
<u>Exact Area = 2.25 π ft²</u>
<u>Approximate Area = 7.07 ft²</u>