900 people were surveyed on how they get to work in Dallas. Public Transportation- 19% and Bikes 11%. How many people were surveyed that take public transportation and bikes?
900(.11+.19)
Turn 11% and 19% to decimals by mutiplying by 100:
11 * 100 = 0.11
19 * 100 = 0.19
Now, add 0.19 and 0.11 together, for the total. = 0.3
0.3 x 900 = 270.
270 people took P.T and Bikes.
- This is from MissSmarties/Kaylee
To find the number of people who take both public transportation and bikes, we need to calculate the intersection of the two percentages: 19% and 11%.
First, let's find the number of people who take public transportation:
19% of 900 = (19/100) * 900 = 0.19 * 900 = 171
Next, let's find the number of people who ride bikes:
11% of 900 = (11/100) * 900 = 0.11 * 900 = 99
To find the number of people who take both public transportation and bikes, we need to subtract the number of people who take public transportation (171) from the total number of people who ride bikes (99). This is because the 99 people who ride bikes include the subset of 171 people who take public transportation as well.
Number of people who take public transportation and bikes = 99 - 171 = -72
Since the result is negative, it means that there is no intersection between the two groups. Therefore, no people were surveyed who take both public transportation and bikes.