I think u have to do 120÷20=60
then 60×15=900
so he sold 900 flowers I'm not sure tho
Answer:
Hi there, your answers here are 44% and 33%.
To convert 4/9 to a percent, first we can write it as a decimal - 0.44444444444. To get this decimal, we divide 4 by 9. Then, we multiply this decimal by 100 to get 44.4444444444, or roughly 44%.
To convert 7/21 to a percent, first we can write it as a decimal - 0.33333333333. To get this decimal, we divide 7 by 21. Then, we multiply this decimal by 100 to get 33.3333333333, or roughly 33%.
Answer:
1.63% probability that the 10 selected include include all the best 5 engineers in the group of 20
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
The order in which the engineers are selected is not important, so the combinations formula is used to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
Desired outcomes:
10 engineers selected from a set of 20.
5 best, from a set of 5.
Other 5, from a set of 20-5 = 15.
Totao outcomes:
10 engineers selected from a set of 20.
Probability:
1.63% probability that the 10 selected include include all the best 5 engineers in the group of 20
<span><span>tn</span></span><span>=a<span>r</span></span>ⁿ⁻¹ a = first term
<span><span>t</span></span>₆<span>=5(<span><span>−1/</span>2</span><span>)</span></span>⁶⁻¹ =<span><span>5(<span><span>−1/</span>2</span><span>)</span></span></span>⁵
then simplify, to get -5/32
Answer:
The answer is C.
How I got this:
$552.35 - $67.25 = $485.10
$485.10 / 7 = $69.30
I hope this helps!
-Mikayla
