This question is incomplete, However, it can be found in search engines and here is complete question :
Leslie is a biologist. She is going to randomly select one animal from her lab to study. There are 5 salamanders, 3 crayfish, and 12 minnows in her lab. What is P{salamanders}.
Answer:
0.25 or 25%
Step-by-step explanation:
Since there are number of salamanders = 5
number of crayfish = 3
number of minnows = 12
total number of animals n = 5 + 3 + 12 = 20
She wants to randomly select an animal and check if it is Salamander or not.
= 
= 
= 0.25 or 25%
Answer:
7
Step-by-step explanation:
First let’s convert the mixed numbers to improper fractions 2 1/4 =9/4
Then u get 4(X-9/4) =-3.7
Now your gonna divide both sides by four
4(X-9/4) over 4 = -3.7 over 4
4/4 =1 …X=-9/4
-3.7/4 = -0.925
Now you’re going to add 9/4 to each side
X-9/4+9/4=-0.925 +9/4
-9/4 + 9/4 =0 (X)
Now you have just -0.925 and nine fourths
I converted 9/4 —> 2.25
Then u still have -0.925
So add 2.25+-0.925 u get ur X which is 1.325 (this is ur answer)
The probability that the cube will land on 4 is 1:6 because 4 is only on the cube once. The probability of the coin landing on heads is 1:2
The total amount paid by a customer who purchased a CD player at $142.00 and sales tax of 5.5% is $149.81
<h3>Sales tax</h3>
- Cost of CD player = $142.00
- Sales tax = 5.5%
Amount of sales tax = 5.5% of $142.00
= 5.5/100 × 142
= 0.055 × 142
= $7.81
Total amount paid by customers = Cost of CD player + Amount of sales tax
= $142.00 + $7.81
= $149.81
Learn more about sales tax:
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