Answer:
Equation B
Step-by-step explanation:
By going through the equations and comparing them to the question, we can determine the correct equation.
Equation A is the multiplication of the distance they have already hiked by 21.
Equation B is the subtraction of the distance already hiked from the total length of the trail.
Equation C is the same as Equation A, but with a factor of 17.5 instead of 21.
Equation D is the addition of the distance already hiked from the total length of the trail.
Therefore, Equation B is the correct answer.
Answer:
28.26
Step-by-step explanation:
The circumference of a circle is the distance around the edge of the circle. To find the circumference, we use the formula C = 2πr. The area of the circle is the amount inside the circle and is found using A = πr². Substitute the relevant values in each situation into the formulas to find the circumference and/or area.
Substitute C = 18.84 and solve for r. Then substitute r into the area formula.
C = 2πr
18.84 = 2πr
3 = r
A = πr² = π(3)² = 28.26
For this problem, there are two situations. To solve this, let's construct an algebraic equation for each. Let's find the total cost. Let x be the number of yards.
Situation 1: Cost = 4x + 5
Situation 2: Cost = 6x +2
Now, both situations have the same cost. So,
4x + 5 = 6x + 2
6x - 4x = 5 - 2
2x = 3
<em>x = 3/2 or 1.5 yards</em>
Answer: [C]: "All rectangles are quadrilaterals."
____________________________________________________
Answer:
A = 400 cm^2
Step-by-step explanation:
The perimeter of a square is given by
P = 4s where s is the side length
80 = 4s
Divide each side by 4
80/4 = 4s/4
20 =s
We want to find the area of the square
A = s^2
A = 20^2
A = 400 cm^2
