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True [87]
3 years ago
7

A box has 3 pencils, 5 pens, and 4 markers. What is the probability of randomly pulling out a marker, then after putting it back

your friend
grabbing something that is not a pencil?
Mathematics
2 answers:
NARA [144]3 years ago
6 0

Answer:

1/4 chance of pulling a pencil then 3/4 for ur frend

ziro4ka [17]3 years ago
6 0

Answer:

If I remember correctly, possibility is favorable outcome / total possible outcomes.

Step-by-step explanation:

So this means:

Favorable outcomes: 3 (Pencils)

Total possible outcomes: 12 (3 + 5 + 4)

3 / 12 = 0.25

Hope it helps!

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In order to play in chess tournaments at the Marshall Club, Malik pays a fee to become a member. In addition, he pays a set rate
Keith_Richards [23]

Answer:

p = 22.50 + 15t

Step-by-step explanation:

For Malik :

Membership fee = m

Rate per tournament = t

After 4 tournaments :

m + 4t = 85 - - - (1)

After 7 tournaments :

m + 7t = 130 - - - (2)

Subtract 2 from 1

4t - 7t = 85 - 130

-3t = - 45

t = 45 / 3

t = 15

Put, t = 15 in (1)

m + 4(15) = 85

m + 60 = 85

m = 85 - 60

m = 25

Massai pays 10% less membership fee than Malik

Hence, Massai's membership fee:

(100 - 10)% * 25

0.9 * 25 = $22.50

Total price, p, Massai will pay to compete in t tournaments ;

Total price = membership fee + (rate per tournament * number of tournaments)

p = 22.50 + 15t

3 0
3 years ago
How do I solve this problem
Harman [31]
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==========================
y = total cost, x = # of miles

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a circle is centered on point B. points A, C and D lie on its circumference. if ABC measures 70 what does ADC measure
stepladder [879]

Answer:

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Step-by-step explanation:

5 0
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mariarad [96]

Answer

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Step-by-step explanation:

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