Suppose a card is drawn from a deck of 52 playing cards. what is the probability of drawing a 3 or a king?

1 answer:

5 0

In a full 52-card deck, there are 4 kings and 4 3's, which do not overlap.
Therefore the total number of "successes" is 4+4=8 out of a 52-card deck.
=>
The probability of drawing a 3 or a king out of a 52-card deck is 8/52=2/13.

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Justice lived in Germany and Hollands for a total of 24 months in order to learn German. He learned and average of 120 words per

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Justice lived in Germany for 15 months and he lived in Holland for 9 months.

Step-by-step explanation:

1. You must make a system of equations:

$\left \{ {{x+y=24} \atop {120x+220y=3780}} \right.$

Where $x$ is the number on months he lived in Germany and $y$ is the number on months he lived in Holland.

2. You can solve this system of equations by using the Elimination Method. If you multiply the first equation by -120, you can cancel the variable $x$ when you add both equations, and then you can calculate $y$ . When you obtain the value of $y$ , you can substitute it into one of the original equations and solve for $x$ . Then:

$\left \{ {{-120x-120=-2880} \atop {120x+220y=3780}} \right.$