Billy has 2 nickels, 5 dimes, 2 quarters, and 3 pennies in his pocket. If Billy randomly selects 2 coins from his pocket, what is the probability he selects a nickel first, doesn't put it back, and then selects a dime?

i can answer this question sweetie!

step-by-step explanation:

if the probability is 1/12, 75 people will receive a $25 gift card

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!