Answer:
13 cars per hour
Step-by-step explanation:
She can vacuum 104 cars in 8 hours, so divide 104 by 8, 104/8, to get 13. So she can vacuum 13 cars in 1 hour.
Say you have small lego bricks (lets say 2 inch in length) and large lego bricks (lets say 3 inches in length) so you want to find out how many little legos will it take to equal 4 large ones, because they are smaller you need more to create the same length as the larger one, hints multiplying.
easiest way i can think of to help you out :)
Answer:
probability of selecting 3 green marbles, 1 red marble, and 1 blue marbles

Step-by-step explanation:
Given data urn containing '9' marbles
given red marbles = 2
green marbles =3
blue marbles = 4
Five marbles can be selected at a time from '9' marbles in
ways
by using formula 

After simplification , we get 
total number of ways n(S) = 126
The probability of selecting '3' green marbles ,one red marble and one blue marble with replacement.
let ' E' be the event of selecting '3' green marbles ,one red marble and one blue marble with replacement.
n(E) =
ways
The required probability 

on simplification , we get


Answer:
1.4 in x.y but in y.x it 4.1
Step-by-step explanation: