if 3 out of every 200 people contract a viral disease how many people will contract the viral disease among 30.000 people? solve using proportion's
prob(contract) = 3/200
so appr number from 30000 =(3/200)(30000) = 450
or
x/30000 = 3/200
x = 30000(3/200) = 450
thankkkk uuuu so much mathhelper
QUESTION:
A:4500
B:45
C:50
D:450
HELP PLS
To solve this problem using proportions, we need to set up a proportion between the number of people who contract the viral disease and the total number of people.
Let's define:
x = the number of people who contract the viral disease
Based on the information given, we know that 3 out of every 200 people contract the viral disease. This can be expressed as the ratio 3/200. We can set up a proportion by equating this ratio to the number of people who contract the disease (x) over the total number of people (30,000):
3/200 = x/30,000
To solve this proportion, we can cross-multiply:
200x = 3 * 30,000
Simplifying the right side of the equation:
200x = 90,000
Dividing both sides by 200 to solve for x:
x = 90,000 / 200
x = 450
Therefore, among 30,000 people, 450 people would be expected to contract the viral disease.