I’m sorry I meant 468 is the answer hope it helps.
A)
Let x represent the cost of 1 student, and y the cost of 1 teacher.
B)
In the first group, there's 25 students and 2 teachers. Their total cost is $97.50
So 25x + 2y = 97.50
In the second group, there's 32 students and 3 teachers. Their total cost is $127
So 32x + 3y = 127
We get the following system of equations:
25x + 2y = 97.50 (1)
32x + 3y = 127 (2)
C)
25x + 2y = 97.50 (1)
32x + 3y = 127 (2)
In equation (1)
25x + 2y = 97.50
25x + 2y - 2y = 97.50 - 2y
25x = 97.50 - 2y
25x / 25 = 97.50/25 - 2y/25
x = 3.9 - (2/25)y
In equation (2), let's replace x by its algebraic value
32x + 3y = 127
32(-2/25y + 3.9) + 3y = 127
11/25y + 124.8 = 127
11/25y + 124.8 - 124.8 = 127 - 124.8
11/25y = 2.2
(11/25y) / (11/25) = 2.2 / (11/25)
y = 5
x = -2/25y + 3.9
x = -2/25 * 5 + 3.9
x = 3.5
So the cost of each student is $3.5, and the cost of each teacher is $5.
Hope this helps! :)
Answer:
36
Step-by-step explanation:
Givens
a = 312
d = -6
n = 47
Formula
L_n = a + (n - 1)*d
Solution
L_n = 312 + (47 - 1) * -6
L_n = 312 + 46*(-6)
L_n = 312 - 276
L_47 = 36
If there are 8 sides to an octagon, that means that there are 4 equal sides remaining. First, we would subtract 70-12=58. 58 is the total perimeter of the four equal sides remaining. We would then divide 58 by 4 to find the length of each side. You should be able to finish this off. I hope this helped!!!
Answer:
it can help you with answer a math problem
Step-by-step explanation: