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.

Answer 1

\(\dfrac{7}{10}*\dfrac{6}{9}=?\)

Answer 2

56/90?

Answer 3

or do I cross multiply it?

Answer 4

Can it be simplified?

Answer 5

Try dividing both by 2

56/2

90/2

Answer 6

28 and 45

Answer 7

so the final answer is \(\dfrac{28}{45}\)

Answer 8

thank you!! btw I love your profile picture

Answer 9

yw and thanks!! :)