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loris [4]
3 years ago
15

From a standard deck of cards, what is the probability that you choose a red card and then a 3, assuming you replaced the first

card?
Mathematics
1 answer:
aalyn [17]3 years ago
4 0
1/26: 26 red cards make a 1/2 probability, there are 4 3s in a deck, making a 1/13 probability. Considering you don't take the cards and leave them, (1/2)1/13= 1/26
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Assume you purchased a car for $2,300 and sold it one week later for $3,100. How much did your net worth change, if at all?
Natali5045456 [20]

Answer:

My net wroth would have changed by $800

Step-by-step explanation:

Because $3,100 - $2,300 = $800

4 0
4 years ago
4a-b<br> Evaluate the expression when a=5 and b=-7
stepladder [879]

Answer:

27

Step-by-step explanation:

So first we need to plug in 5 as the variable a and -7 as the variable b

4(5)-(-7)

Next we multiply the 4 and the 5 together to get 20

4(5) = 20   or    4 x 5 = 20

20-(-7)

Now we subtract negative 7 from 20

20-(-7) = 27

This can also be written as 20 plus 7 as a mathematical rule states: two negatives make a positive. So:

20-(-7) = 20 + 7

Both of these are equivalent in every sense of the word and give us our final answer of 27

8 0
3 years ago
Read 2 more answers
PLEASE HELP WILL GIVE BRAINLIEST
Marta_Voda [28]

<u><em>Answer:</em></u>

The bird will have traveled 403 meters in 13 seconds if it maintained a speed of 31 m/sec

<u><em>Explanation:</em></u>

<u>The equation that relates velocity, distance and time is:</u>

velocity = \frac{distance}{time}

<u>This means that:</u>

distance = velocity * time

<u>In the given, we have:</u>

velocity = 31 m/sec

time = 13 sec

<u>Substitute with the givens in the above equation and solve for the distance as follows:</u>

distance = velocity * time

distance = 31 * 13

distance = 403 meters

Hope this helps :)

8 0
3 years ago
Psl help simplify this
Luba_88 [7]

Answer:

See the image below:)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Whyyyyy do I suck so baddddddd
oksian1 [2.3K]

Okay, so first, the quadrants on a coordinate plane go counter clockwise.

                          2                 |               1

                       __________|__________

                           3                |              4

(1/2, -1.8) Would be a little to the right of the y axis, and a little below the x axis.

So, your answer would be D) Quadrant IV

8 0
4 years ago
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