Answer:
This can be done in 3645 ways
Step-by-step explanation:
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
In this problem, we have that:
1 Beethoven symphony, from a set of 9.
1 Mozart concerto, from a set of 27.
1 string quartets, from a set of 15.
So
This can be done in 3645 ways
2x+9+3x+x combine like terms 2x+3x+x=7x rewrite 7x+9
hope this helps have a nice nite
Answer:
To find the unit price, we divide the total cost by the number of items.
$3.90 ÷ 3 = $1.30
That means the unit price is $1.30 for each sponge.
Using the average rate of change, it is found that the average rate is of:
(1) 2.1 °F per minute
<h3>What is the average rate of change of a function?</h3>
It is given by the <u>change in the output divided by the change in the input</u>.
In this problem:
- At 15 minutes, the temperature was of 90ºF.
- At 45 minutes, the temperature was fo 153ºF.
Hence, in 30 minutes, the temperature increased 63ºF, hence the rate is given by:
r = 63/30 = 2.1 °F per minute.
More can be learned about the average rate of change at brainly.com/question/24313700
