we know that
The probability that "at least one" is the probability of exactly one, exactly 2, exactly 3, 4 and 5 contain salmonella.
The easiest way to solve this is to recognise that "at least one" is ALL 100% of the possibilities EXCEPT that none have salmonella.
If the probability that any one egg has 1/6 chance of salmonella
then
the probability that any one egg will not have salmonella = 5/6.
Therefore
for all 5 to not have salmonella
= (5/6)^5 = 3125 / 7776
= 0.401877 = 0.40 to 2 decimal places
REMEMBER this is the probability that NONE have salmonella
Therefore
the probability that at least one does = 1 - 0.40
= 0.60
the answer is
0.60 or 60%
Answer:
(5x+2)(3x-2)
Step-by-step explanation:
<h2><u>In total, she will need $98.34 to pay all of the foods she plans to serve at the party.</u></h2>
All of the work:
<em>How to solve the amount of pizza she needs:</em>
20 x 3 = 60
60 divided by 10 = 6
<em>How to solve the amount of soda bottled needed:</em>
20 x 16 = 320
320 divided by 64 = 5
<em>How to solve the number of pans she needs:</em>
20(2 x 3) = 40 x 60
40 x 60 divided by 8 x 12 = 5
<h2>
THE COST CAN BE FOUND BY MULTIPLYING THE NUMBER OF THE ITEM NEEDED AND THE PRICE FOR EACH OF THE ITEM.</h2>
<em>Number of pizza she needs:6 pizza, costs $77.94</em>
<em>Number of soda bottles she needs:5 bottles, costs $8.45</em>
<em>Number of pans she needs:5 pans, costs $11.95</em>
<em>Add 77.94, 8.45, and 11.95 and get 98.34</em>
Answer:X=5
Step-by-step explanation:
6x + 12 = 42
-12. -12
6x=30
6x. 6
X=5
Check
6(5)+12=42
30+12
42
