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ss7ja [257]
3 years ago
9

A special deck of cards consists of 5 red cards, 20 blue cards, and 25 green cards. Svetlana selects 1 card from the special dec

k 500 times. How many times can she expect to draw a red card?
Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
7 0

Answer:The answer is 50

Step-by-step explanation:

The first step is to add up the numbers in order to get the outcome

5 red + 20 blue +25 green =5+20+25 =50

Step 2

Probability =no of events /no of outcome

We were asked to find the probability of red

Where red represent event

And the summation of red ,green and blue represents outcome .

So probability of red =5/50 = 1/10

Step 3

Recall in the question ,we were told that the card was selected 500 times ,so we multiply the probability of getting red by 500

1/10 *500 =50

Therefore the probability of drawing a red card from the special deck 500 times is 50 .

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Steve has a square patio with sides of length 9 feet. He plans to enlarge it to a rectangular patio by
Greeley [361]

Answer:

51ft^2

Step-by-step explanation:

Given data

Side of square patio= 9ft

Area= 9*9= 81 ft^2

New length = 9+3= 12ft

New Widht = 9+2= 11ft

New Area= 12*11

New Area= 132ft^2

Hence the area added is

=132-81

=51ft^2

5 0
2 years ago
Jack is two weeks into his diet and now weighs 197 pounds. If he lost 3 pounds the first week and 6 pounds the second week, what
marin [14]

Answer:

206

Step-by-step explanation:

197 + 3 + 6 = 206

8 0
2 years ago
Whats the slope and the equation
vichka [17]
You can find the slope of a line by having two points. In this case we have 5 different point so we pick two.

so for the first one I will pick (2,17) and (7,37)

we use (y2-y1) / (x2-x1)  this is rise over run

plug and chug to get slope.
(37-17)/(7-2)= 4 

now use point slope using one of the point that we used to find the slope
y−b=m(x−a<span>) or y-y1 = m (x-x1)

plug and chug again
m=4 ............ point (2,17)

y- 17 = 4 (x- 2)
y= 4x +10 

hope this helps
</span> 
4 0
2 years ago
What is the 20th term of 64,67,70,73,76
PIT_PIT [208]

Let's analyze the increments for each step of the sequence:

Each step we add 3 to the previous number.

Since we need the 20th, from what we saw, in the 20th term we will have added three 20 times.

So the procedure is: calculate how much is 3 times 20 and then add that to the first term of the sequence.

3\times20=60

So we add 60 to the first term to find the 20th term:

64+60=124

Answer: 124

6 0
10 months ago
The price of a car was decreased by 20% to £720. What was the price before the decrease?
Gemiola [76]

Answer:

say x is the original price so

x - (20x/100) = 720

720 is the balance we got after deducting the original price,

therefore; 720 = (80x/100)

You can simply solve for x now.

answer:

x = 900

4 0
3 years ago
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