Asurvey was given to 339 people asking whether people like dogs and/or cats.
190 said they like dogs
141 said they like cats
88 said they don't like cats or dogs.
how many said they liked both cats and dogs?

80.

Step-by-step explanation:

Let be the set of people who like cats and the set of people who like dogs. Under the cardinality theorem you have

n(CUD) = n(C) + n(D) - n(CnD)[/tex], isolating the ∩ , you have n∩  = n(C) + n(D) - ∪∩  

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.

40% off the regular price is the correct answer.

step-by-step explanation: