in a survey of 9000 people, 4000 likes tea,4500 like coffee. among them 2500 dont like tea and coffee. find number of people who
like tea and coffee both
2 answers:
Answer:
500
Step-by-step explanation:
n(t)=4000
n(c)=4500
n(tea only )= 4000-x
n(coffee only )= 4500-x
n(coffee and tea )= x
note...using Venn diagram ..all together must add up to 9000
(4000-x)+(4500-x) +x = 9000
..............
...........collect like terms
9500-9000 = x
x = 500
Step-by-step explanation:
No of people likes tea = 4000
No of people like coffee = 4500
Total = 8500
No of people don't like tea and coffee = 2500
No of people like tea and coffee = 8500 - 2500 = 6000
You might be interested in
Paralel lines have same slope
if green line is paralell to red line
and the slope of the green line is 1/4
slope of red line is 1/4 also
Answer:
1, -2, -5, -8
Step-by-step explanation:
(-3*x)-5
just do that i swear
To isolate the variable means to get it by itself.
The central angle = 360/12 = 30 degrees Answer.
Exterior angle = 360/12 = 30 so the Internal angle = 180-30 = 150 degrees. Answer
Well, something around 522 so probably like 500 or 525
