Answer:
39.4384
Step-by-step explanation:
C= 2(pi)(r)
C=2(3.14)(9)
39.4384=2(3.14)(9)
Answer:
He should order 15 long boards
Question:
Escape park owner want 30% of each order to include long boards he wants to know how many long boards to order out of a total of 50 skateboards
Step-by-step explanation:
Let x and y represent the number of long board and the total number of skateboard to order.
Given that 30% of each order to include long boards;
x = 30% of y
x = 0.3y .....1
But, the total number of skateboard is given as 50
y = 50
From equation 1
x = 0.3y = 0.3(50)
x = 15
He should order 15 long boards
Rewriting the expression we have:
(7 / (x ^ 2-7x)) - (5 / (x ^ 2-49))
Rewriting the denominator:
(7 / (x * (x-7))) - (5 / ((x-7) (x + 7)))
(1 / (x-7)) * ((7 / x) - (5 / (x + 7)))
Rewriting we have:
(1 / (x-7)) * (((7x + 49) + (-5x)) / (x * (x + 7)))
(1 / (x-7)) * ((2x + 49) / (x * (x + 7)))
((2x + 49) / (x * (x + 7) * (x-7)))
Answer:
The difference is:
((2x + 49) / (x * (x + 7) *(x-7)))
From eqn 3,
2z = 10
z = 5
Substitute z = 5 into eqn 1&2
x + 2y + 5 = 9
x + 2y = 4
x - y + 3(5) = 13
x - y = -2
Eqn 1 - eqn 2:
x + 2y - (x - y) = 4 - (-2)
3y = 6
y = 2
Substitute y = 2 into eqn 1
x + 2(2) = 4
x = 0
Thus, x = 0, y = 2, z = 5 (option 3)
