Answer:
n = - 19
Step-by-step explanation:
8n - 9n - 2 = 17 , that is
- n - 2 = 17 ( add 2 to both sides )
- n = 19 ( multiply both sides by - 1 )
n = - 19
Answer:
Irrational, rational, rational, rational, irrational
Step-by-step explanation:
Pi is irrational, so anything multiplied by it is irrational also. The square root of 25 is just 5 or -5, both of which are rational. 17/12 is a fraction of integers so it's rational. 41.4141... is a repeating decimal so it is rational. And the square root of 7 is a random decimal, so it is irrational.
Simplify:
-3 - (-t - 5) > 0
t + 2 > 0
t > -2
Answer Choice B
Step-by-step explanation:
Their daily rate is

miles per day
Using distance-speed-time formula, we can calculate the time

days
They need 21-3=18 more days to finish the trip