Step-by-step explanation:
=(g-f)(n)
=4n+7-2n-3
=2n+4
Well, you already know how much she stuff per hour, but you still need to find out how much per minute. And in one hour, there are 60 minutes.
So you divide the amount in an hour by 60 minutes, meaning you divide : 228 ÷ 60 = ?
And once divided, you get 3.8. So that would mean that she stuffs 3.8 envelopes per one minute, so that means nearly 4, but since you aren't asked to round, I'd say to just go for the average rate, which is 3.8
Car A Car B
d=rt d = rt
d = ra * 2.4 d = rb 4
ra = rb+22
distances are the same so set the equations equal
ra * 2.4 =rb *4
substitue in for ra
(rb+22) 2.4 =rb *4
distribute
2.4 rb +52.8 = 4 rb
subtract 2.4 rb from each side
52.8 = 1.6 rb
33 = rb
Car b travels at 33 miles per hour
Car a = 33+22
Car a = 55 miles per hour
Write out the numbers between 24 and 33: {24, 25, 26, 27, 28, 29, 30, 31, 32, 33}
How many numbers have we here? 10.
How many of these numbers are odd? {25, 27, 29, 31, 33}
Strictly speaking, "between 24 and 33" does not include {24, 33}.
Thus, the odd numbers between 24 and 33 are {25, 27, 29, 31}
The chances of drawing an odd number between 24 and 33 are then 4 / 10.
If, however, we omit the endpoints 24 and 33, then there are 8 numbers between 24 and 33: {25, 27, 29, 31}
and the odds of choosing an odd number from these eight numbers is 4/8, or 1/2, or 0.50.
