Answer:
69
Step-by-step explanation:
Perimeter = sum of all sides of a regular polygon = the number of sides*length of a side
Length of a side of the given regular hexagon = 3x + 5
Perimeter of hexagon = 6(3x + 5) = 6(3x) + 6(5) = 18x + 30
Length of a side of the given regular pentagon = 4x - 1
Perimeter of pentagon = 5(4x - 1) = 5(4x) - 5(1) = 20x - 5
Since we are told that the perimeter of the regular hexagon is the same as that of the regular pentagon, therefore:
18x + 30 = 20x - 5
Solve for x.
Subtract 20x from both sides
18x + 30 - 20x = 20x - 5 - 20x
-2x + 30 = -5
Subtract 30 from both sides
-2x+ 30 - 30 = -5 - 30
-2x = -35
Divide both sides by -2
x = -35/-2
x = 17.5
Length of a side of pentagon = 4x - 1
Plug in the value of x
4(17.5) - 1 = 70 - 1 = 69
length of a side of the pentagon = 69
Answer:
he would have 106
Step-by-step explanation:
hope it helps
So if a number is 5 or greater you round up but if the number is 4 or less you round down so the number 6 is above five so you would round the 6 to 10 therefore making it 7.8 instead of 7.76
Perpendicular slope = -1/3
y = mx + b (-5,2)
2 = -1/3(-5) + b
2 = 5/3 + b
so
b = 2-5/3
b = 1/3
equation
y = -1/3x + 1/3
answer is B
Answer:
Step-by-step explanation:
<u>Given</u>
- Dime = d = 10c,
- Nickel = n = 5c
- Total coins = d + n = 72
- Total value = $4.90 = 490c
<u>Equations</u>