For the first question, all you need to know is that the (amount you want) divided by (the amount of cards total) is the probability of getting the amount you want at random. for example, if there are 3 red marbles in a bag of ten marbles, you divide 3 by 10 (0.30) the probability of picking up a red marble is 30%. try adding up how many cards you want to pick up by the number of cards total.
Answer:
Step-by-step explanation:
we know that
The density is equal to the mass divided by the volume
Let
x-----> the mass of marble
y----> the volume of marble
z----> the density of marble
in this problem we have
substitute and solve for x
1 hghhhhhhgghhghhhhhhhhhhhh
Answer:
x = cd + b / a
Step-by-step explanation:
ax - b / d = c
ax - b = cd
ax = cd + b
x = cd + b / a
The probability of choosing a red marble is 18/47.
