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2 years ago

7

On your first draw, what is the probability of drawing a red card, without looking, from a shuffled deck containing 6 red cards,

6 blue cards, and 8 black cards?

1 answer:

Elis [28]2 years ago

5 0

First divide 6/(6+6+8) =0.3
Then multiple it by 100 to get the probability percentage 30%

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Deepak randomly chooses two marbles from the bag,

Alika [10]

Green 5/15
red 2/15
that should be your answer

3 0

3 years ago

Read 2 more answers

Change 43% into a decimal number

Softa [21]

To make a percent to a decimal, move the decimal to the left 2 times.
43%=0.43

7 0

3 years ago

The first term of an arithmetic sequence is 14. The 25th term is 206. What is the common difference of the arithmetic sequence?

larisa [96]

an = a1+ d(n-1)

a1 =14

an=206 when n=25

206 = 14 + d (25-1)

206 = 14 + d * 24

subtract 14 from each side

192 = 24d

divide by 24 on each side

d=8

The common difference is 8

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3 years ago

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FIRST TO ANSWER GETS BRAINLIEST!!!!

mr_godi [17]

Answer:

(3,2)

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)

4 0

3 years ago

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An online shopping club has 10,000 members when it charges $7 per month for membership. For each $1 monthly

Sonja [21]

Answer:

The function that can be used in the online shopping club about its monthly revenue is:

$R = -400x^{2} +7200x+70000$

Step-by-step explanation:

First, we're gonna take into account the different values we have in the exercise:

10,000 members
$7 per month for membership
Loses of 400 members by each $1 monthly increase

How the variable $x$ represents the price increase, we can do the formula below:

$(10000 - 400x) * (7+x)$

In this formula, we represent in the first part that by each 1 in the variable $x$ , the total of members will be reduced in 400, in the second part, we mention that at the same time, the membership fee will be increased in the same value of $x$ . Now we must simplify this function:

$(10000 - 400x) * (7+x)$

We operate the values:

$70000+10000x-2800x-400x^{2}$

Solve we can:

$70000+7200x-400x^{2}$

And organize:

$-400x^{2} +7200x+70000$

At the end, how $R$ represents the monthly revenue received by the club, we use that variable for our formula:

$R=-400x^{2} +7200x+70000$

4 0

2 years ago