Answer:
4845 ways
Step-by-step explanation:
To solve this problem we use the formula of combinations
Where n is the total number of students that can be chosen and you choose r from them.
So
Note that in this case the order in which the 4 students are chosen does not matter.
Then
Answer:
x = -6
Step-by-step explanation:
He can pack 2. In each group with 1 left over
Answer:
Infinitely many solutions. Each real number is a solution of this equation.
Step-by-step explanation:
-5 + (-5r) + 10 = -5r + 5
5 - 5r = -5r + 5 <em>add 5r to both sides</em>
5 = 5 TRUE
The first one is : (9)
By submitting --> 9
For every "X" in both of the equations its = 59
And because the question told us that the perimeter is 118 , so we multiply the 59 by 2
59x2 = 118
So , the answer is (9)
the second one is : (19)
the coverage value is 5$ , and the cost p/m is 0.15$ , so we subtract 7.85$ - 5$ we will get = 2.85$ , now by dividing 2.85$/0.15$ we will get = 19 , and that is the number of miles.
Good Luck!