during a clinical study, a medical company found 3 out of 70 people experienced a side effect when using a certain medicine. The company predicts 63,000 people will use the medicine next year. How many people are expected to experience a side effect?

Question

3/70=x/63000

18900=70x
x=2700
is this correct? thanks

Answer 1

Yes, that's right.

Answer 2

Ms. Sue no it isn't!!

Elle you need to divide 70 of each side! your equation will be 18900/70=70x/70
then for your final answer: you will get x=270

Answer 3

3/70=x/63000

Cross multiply.

70x = 189,000

x = 2,700

Answer 4

Ms. Sue what are you smoking??!!

Answer 5

Anonymous, that not very nice! but Ms. Sue why would you cross multiply? you should just divide to get x by itself. and get x=270 just like Anonymous said

Answer 6

Anonymous/Country cutie -- why are you talking to yourself?

Please study this site about proportions.

http://www.mathsisfun.com/algebra/proportions.html

You should not be so quick to insult and challenge a long-time teacher.

Answer 7

honestly im from 2019 but this is hilareous so i hope yall keep up the hot debate