Answer:
P = 3x - 4
Step-by-step explanation:
Side 1 = x - 3
Side 2 = x
Side 3 = 2 + (Side 1) = 2 + x - 3 = x - 1
Perimeter = 20 in
Perimeter = Side 1 + Side 2 + Side 3
Perimeter = (x - 3) + (x) + (x - 1)
Perimeter = x - 3 + x + x - 1
Perimeter = 3x - 3 - 1
Perimeter = 3x - 3 - 1
Perimeter = 3x - 4
P = 3x - 4
80 area- 10 x 8 is 80, that is the area.
Answer: 4/3 or 1 1/3 feet
Step-by-step explanation:
12 months make a year.
Since the shoreline is eroding at 1/3 foot per 3 months, for a year it will be:
1/3 × 12/3 = 4/3 or 1 1/3 feet
$2.50
Step-by-step explanation:
10 dimes are 100 aka 1 dollar, and 30 nickels make 250
Answer: See steps below for answer
Step-by-step explanation:
1) Set up an equation
- 40 + x + 3x = 180
- 4x + 40 = 180
- 4x = 140
- x = 35
_____
Part 2:
One angle: 40 degrees
Second angle: x or 35 degrees
Third angle: 3x or 105 degrees
Therefore answer is
35, 40, 105