I think that C and D are the correct answers
4x=y+47, we can subtract 47 from both sides to get:
4x-47=y, now we know what y equals in terms of x, so we can substitute that in to the other equation:
2x+3y=55 becomes 2x+3*(4x-47)=55 which becomes:
2x+12x-141=55 which becomes 14x-141=55 and we can add 141 to both sides:
14x=196, divide 14 by both sides, we get x=14, which we can substitute back into the y=equation:
4x-47=y becomes 14*4-47=y which becomes y=9
x=14, y=9
x-y=14-9=5
Probability 1st card is a diamond.....13 diamonds in the deck....13/52 reduces to 1/4
replace
probability 2nd card will be black....there are 26 black cards.....26/52 reduces to 1/2
replace
probability 3rd card is an ace....4 aces in the deck...4/52 reduces to 1/13
probability for all of that happening : 1/4 * 1/2 * 1/13 = 1/104 or 0.0096 or 0.96%
Answer:
dang I don't know! All I know is that it is more than 1-2 inches... I think.
Doubles facts is think of a number for example X, where X=1. Doubles is 2x which is 1*2=2, 1*2 is the same as 1+1. Its add the number to itself.
