Nurse Jackson examines immunization records for this past winter at the school where she works.
Got flu Didn't get flu Total
Vaccinated
120
380
500
Not vaccinated 160
140
300
Total
280
520
800
How many students were not vaccinated and did not get the flu?
A. 140
B. 300
O C. 380
O D. 160
no

6.9

step-by-step explanation:

simple math really

6 1/2 times 0.6 = 3.9

but if you are just doing 6 and not 6 1/2 then the answer is 3.6

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.