Answer:
90
Step-by-step explanation:
10!/(10-2)!
n!=n(n-1)!
10•9•8!/(10-2)!
10•9•8!/8!
The 8! cancels out and you're left with 10•9
So, your answer is 90
Complete question :
From the set {24, 36, 72}, use substitution to determine which value of x makes the inequality true.
x ÷ 12 < 3
Answer:
24
Step-by-step explanation:
Given the inequality : x ÷ 12 < 3
Substitute the values in the set for X and test the inequality expression if it hoods true for each of the substituted value.
x = 24
24 ÷ 12 < 3
2 < 3 (true)
x = 36
36 ÷ 12 < 3
3 < 3 (false)
x = 72
72 ÷ 12 < 3
6 < 3 (false)
Answer:
=2x - 21y
Step-by-step explanation:
One step at a time
-3(x + 4y) = -3x - 12y
2(x - 2y) =2x - 4y
=-3x - 12y + 2x - 4y + 3x -5y
=2x - 21y
Answer:
1091.85
Step-by-step explanation:
If you would like to know how far did the man travel, you can calculate this using the following steps:
an hour and a half ... 1 1/2 hours = 3/2 hours
3/2 hours ... x miles = ?
1 hour ... 8 miles
3/2 * 8 = 1 * x
x = 3/2 * 8
x = 12 miles
55 miles ... 1 hour = 60 minutes
y miles = ? ... 24 minutes
60 * y = 55 * 24
y = 55 * 24 / 60
y = 22 miles
x + y = 12 miles + 22 miles = 34 miles
The correct result would be 34 miles.