Answer:
3628800
Step-by-step explanation:
First letter can be chosen form all 10, next from 9, third from 8 and so on, until you have only one number left.
So the number of ways to arrange the letters can be calculated as
n=10×9×8×7×6×5×4×3×2×1=362800
<h2>
Time required to complete the round trip
where x is average velocity on the outgoing trip.</h2>
Step-by-step explanation:
Let average velocity of outgoing trip = x mph
The average velocity on the return trip is 15 miles per hour slower than the average velocity on the outgoing trip.
Average velocity of return trip = (x-15) mph
Distance to vacation place = 420 miles
Distance to vacation place = Time for outgoing trip x average velocity of outgoing trip
Distance to vacation place = Time for return trip x average velocity of return trip
We have total time T = t₁ + t₂
That is

Time required to complete the round trip
where x is average velocity on the outgoing trip.
Step-by-step explanation:
let x be rubgy liked let y football liked
x/125=12/25
ansx=60
again
y/60=5/4
ans y=75
football liked students are 75
Answer:
I don’t get most of it, but I believe “doubles” means two of the same number added together. For example, 9+9 is a double. I think “doubles +1” means a double and add one. For example, 6+6+1. If I were your sister, I would write “9+9 = 18” for doubles and “6+6+1 = 13” for doubles +1.
I hope I helped!
Decimal=9.03 &
fraction= 9 3/100