At the beginning you have 10 balls, 5 of which are red. So, the chance of picking a red ball with the first pick is
When it comes to the second pick, you have 9 balls (because you didn't replace the first red ball), 3 of which are blue. So, you pick a blue ball with the second pick with probability
The two events will occur one after the other with the product of the probabilities:
<span>Ron
walks 0.5 mile on the track in 10 minutes.
Unit rate = 0.5 miles per 10 minutes
Solve:
=> 0.5 miles / 10 minutes = 0.05 miles per minute
Stevie walks 0.25 mile on the track in 6 minutes.
Unit rate = 0.25 miles for 6 minutes
Solve
=> 0.25 miles / 6 minutes = 0.042 miles per minutes
Who walks faster than the 2 of them?
=> 0.05 miles / m is greater than
0.042 miles per minute
Thus, Ron walks faster than Stevie
</span>
Answer:
Step-by-step explanation:
<u>Ratios and Proportions
</u>
The ratio between two numbers x and y is defined as x/y. It measures how many times y is contained in x. For example 12/8 = 1.5 means 12 is 1.5 times 8.
We have two key sets of data: the ratio between the surface areas of the cylinders and the fact that the radius and heights of the cylinders come in the same proportion.
First, we can easily compute the ratio of the surface areas
It gives us the relation
Computing the square root
Computing the cube