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Art [367]
4 years ago
11

a bag contains 3 red 5 yellow and 7 purple marbles find the probability of drawing a purple marble followed by a red marble the

first marble is put back in the bag between draws
Mathematics
1 answer:
Likurg_2 [28]4 years ago
6 0

Answer:

Required probability = 7/75.

Step-by-step explanation:

Probability(purple marble) = 7/15   (as there are 7 marbles out of a total of 15.)

Probability( red marble)  = 3/15 = 1/5.

So the probability of a purple being drawn followed by a red marble

= 7/15 * 1/5

= 7 /75   (answer).

Note: the 2 probabilities are multiplied because the 2 draws are independent of each other.

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What is numerical expression?<br> Three less than 11 times the sum of 9-2
sweet-ann [11.9K]

Answer:

11(9 - 2) - 3

Step-by-step explanation:

This is how you write the expression.

Three less means we have a -3.

11 times the sum of 9 - 2 means we have 11(9 - 2)

We put these together to get:

-3 + 11(9 - 2)

Or we can simplify it to:

11(9 - 2) - 3

6 0
3 years ago
I have 5 minutes to put the answer in
Sholpan [36]

Answer:

-8

Step-by-step explanation:

Y=mx+b, m=slope

in this case -8 is the m

8 0
3 years ago
Read 2 more answers
Krysta's soccer practice started at 7:45 A.M. on Saturday morning. The team practiced dribbling for 15 minutes and practiced sho
Furkat [3]

Total time used= 15+45+30=90 mins

Initial time=7:45

final time will be 1 hr 30 mins more than initial Time

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6 0
2 years ago
Mark's ratio is 3 tablespoons sugar to 2 tablespoons milk. Sharri is using 4 tablespoons of sugar to 3 tablespoons of milk. Eve
mezya [45]
Let's calculate for the tablespoons of sugar to tablespoons of milk ratio for Mark, Sharri and Eve.

Mark: 3/2 = 1.5
Sharri: 4/3 = 1.3
Eve: 9/6 = 1.5

From the solution, Eve has an equivalent ratio to that of Mark's.
4 0
3 years ago
How do you do these questions?
Alika [10]

Answer:

a) - 7 dollars

b) 24.30 dollars

c) - 5 dollars

Step-by-step explanation:

b) 27 / 10%

Divide 27 by 10/100 by multiplying 27 by the reciprocal of 10/100.

27 x 100/10

Multiply 27 and 100 to get 2700.

2700/10

Divide 2700 by 10 to get 270.

270

Divide 270 by 100 to get 2.7

Subtract 27.00 - 2.7 = 24.30

24.30

4 0
3 years ago
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