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o-na [289]
2 years ago
7

Chen's pocket holds 10 coins: 3 quarters, 4 dimes, 1 nickle, and 2 pennies. What are the chances that he first randomly pulls ou

t a quarter and then, without putting the quarter back in, pulls out a penny at random?
Mathematics
1 answer:
Aneli [31]2 years ago
7 0
All the outcomes are 10 (possibilities)


To pull a quarter (total 3), its probability = 3/10 or 0.3

Now without putting the quarter back, the remaining total is now 9 (because one quarter was pulled out) so the probability of getting a penny is 2/9

But this is a conditional probability a) 1st pull a quarter & 2nd pull a penny

So the total probability is 3/10 x 2/9 =6/90 = 1/15 = 0.067
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Montreal canadiens memorabilia is on sale for 40% off due to their disappointing season how much would a jersey that cost $80 be
hjlf
You mean 40% of 80?

40*100 = 0.4

0.4*80 = 32
7 0
2 years ago
Read 2 more answers
Which graph shows the solution to the inequality -3X-/ <20?
konstantin123 [22]

Answer:

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6 0
2 years ago
Eric has $25 to purchase magazines and to pay for his lunch. Each
faust18 [17]

Answer:

B

Step-by-step explanation:

The maximum amount Eric can spend on magazines is $25 less the cost of lunch, $15.

The appropriate inequality sign would be less than since he cannot spend more than $25.

Also, the amount he can spend on magazines would be what is left after paying for lunch.

So the correct inequality is 4m - 15 < 25

8 0
2 years ago
The number 1 through 7 are written in separate slips of paper,and the slips are placed into a box.Then,4 of these slips are draw
Bad White [126]

Answer:

0.0011904

Step-by-step explanation:

Given that:

Number of slips = 7

Sample space = (1, 2, 3, 3, 5, 6, 7)

Numbwe of slips drawn = 4

Probability = required outcome / Total possible outcomes

Note ; selection is without replacement ;

P(drawing 1) = 1 /7

P(drawing 2) = 1 /6

P(drawing 3) = 1/5

P(drawing 4) = 1/4

1/7 * 1/6 * 1/5 * 1/4 = 0.0011904

6 0
2 years ago
What is the length of the diagonal of a square with a side that measures 11 centimeters
timofeeve [1]
A square has 4 equal sides
use pythagroeas theorem since a square has 4 right angles

a^2+b^2=c^2
a=b because the sides are equal (11)

11^2+11^2=c^2
242=c^2
square root both sides
11√2=c

the diagonal legnth is 11√2 centimiters
4 0
3 years ago
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