Question

Analyze tables use the table that shows the percents of blood types of 145 donors during a recent blood drive

a. find how many donors had type b blood. Round to the nearest whole number if necessary ____

b. How many donors did not have type O blood? Round to the nearest whole number if necessary ____

c. Which blood type has less than 10 donors?

blood type percent
O 45
A 40
B 11
AB. 4

Answer 1

a. 16

b. 80

c. Blood type AB

Explanation:

Given:

O = 45%

A = 40%

B = 11%

AB = 4%

Total number of donors = 145

a. No. of donors that had type B blood =
`(11)/(100)*145 = (1,595)/(100) = 15.95`

Type B blood donors ≈ 16

b. No. of blood donors without blood type O =
`(40 + 11 + 4)/(100)*145 = (55)/(100)*145 = (7,975)/(100) = 79.75`

Those without blood type O ≈ 80

c. Find the number of people that had type AB:

Type AB =
`(4)/(100)*145 = 5.8` ≈ 6. This is less than 10 donors.

Therefore, blood type AB had less than 10 donors.