John’s piggy bank contained 7 dimes and 3 quarters. He pulled out 1 coin without looking. Without replacing the first coin, John then pulled out a second coin.

What is the probability that both coins were dimes? Express your answer in simplest form.

Question

John’s piggy bank contained 7 dimes and 3 quarters. He pulled out 1 coin without looking. Without replacing the first coin, John then pulled out a second coin.
 
What is the probability that both coins were dimes? Express your answer in simplest form.

foolofatook · Answer

7/10 because 7 of the 10 total coins were dimes

myth1111 · Answer

Right ignore that

myth1111 · Answer

How many coins were there in total in the beggining

myth1111 · Answer

beginning*

foolofatook · Answer

thars how i was taught and it hasnt failed me yet

myth1111 · Answer

First of all there is 2 fractions....

myth1111 · Answer

Secondly you are breaking openstudy's rules, giving out answers without explanations