Which of the following is an example of theoretical probability? a. wendy flipped a coin 5 times, and the results were 4 tails. the probability of tails is 4/5 . b. kenny rolled a number cube 9 times and got 4 even numbers. the probability of an even number is 4/9 . c. there are 52 playing cards in a deck, and 4 of them are aces. the probability of turning over an ace is 4/25 . d. there were 73 people in a grocery store, and 45 of them bought milk. the probability of people buying milk is 45/73 .

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!