Answer:
$31.70
Step-by-step explanation:
<h2>aPEx</h2>
Answer:
Qualitative
Step-by-step explanation:
- Qualitative describes sizes of drinks in comparison to each other.
- Quantitative sizes should include measurements in a standarized system (e.g. the imperial system, or the metric system).
<h2><em><u>V</u></em><em><u>A</u></em><em><u>L</u></em><em><u>U</u></em><em><u>E</u></em><em><u> </u></em><em><u> </u></em><em><u>O</u></em><em><u>F</u></em><em><u> </u></em><em><u>X</u></em><em><u>=</u></em><em><u>5</u></em><em><u>0</u></em><em><u> </u></em><em><u>D</u></em><em><u>E</u></em><em><u>G</u></em><em><u>R</u></em><em><u>E</u></em><em><u>E</u></em><em><u> </u></em><em><u>A</u></em><em><u>N</u></em><em><u>D</u></em><em><u> </u></em><em><u>V</u></em><em><u>A</u></em><em><u>L</u></em><em><u>U</u></em><em><u>E</u></em><em><u> </u></em><em><u>O</u></em><em><u>F</u></em><em><u> </u></em><em><u>Y</u></em><em><u>=</u></em><em><u>1</u></em><em><u>0</u></em><em><u>0</u></em><em><u> </u></em><em><u>D</u></em><em><u>E</u></em><em><u>G</u></em><em><u>R</u></em><em><u>E</u></em><em><u>E</u></em></h2>
You have to use carefully Venn Diagram to solve this problem:
n, here below means number of students
GIVEN
----------
n(Cigarettes) = 645
n(Alcohol) = 859
n(Drugs) = 207
n(Alcohol ∩ Cigarettes) = 397
n(Alcohol ∩ Drugs) = 109
n(Alcohol ∩ Cigarettes ∩ Drugs) = 85
And 274 Students "Clean from any of the above"
Let x be the unknown number, that is n(Cigarettes ∩ Drugs)
Start by drawing 3 intersecting circles, one for Alcohol, another for Cigarettes and the 3rd for Drugs:
1) n( Alcohol ONLY) =859-397-109-85 = 268 (only Alcohol)
2) n( Cigarettes ONLY) =645-397-85 - x= 163 - x (only Cigarettes)
3) n( Drugs ONLY) =207- 109 -85 - x = 13 - x (only Drugs).
(Remember that there are 274 Students clean, not shown in Venn)
Total of students (we need it to solve):
TOTAL n(STUDENT) = Alcohol Alone+ Cigarette Alone+ Drug Alone + 274
TOTAL n(STUDENT) = 268 + (163-x) + (13-x) + 274
TOTAL n(STUDENT) = 718 -2x
(hope you can get the TOTAL n(STUDENT) to be able to find x, which is the
n(Drugs ∩ Cigarettes)
Y = X/2 is directly proportional
Y = 2/X is not directly proportional
Hope this helps! :)