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kirill [66]
3 years ago
8

A jar contains 21 pennies (worth $0.01 each), 15 nickels (worth $0.05 each), 18 dimes (worth $0.10 each), and 32 quarters (worth

$0.25). if a coin is drawn at random, what is the expected value of the draw?
Mathematics
1 answer:
Lapatulllka [165]3 years ago
4 0
Less than 25 bro.............
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Two sides of a right triangle measure 2 units and 4 units.
Phantasy [73]
The answer is either 20 or 12
4 0
3 years ago
Can someone help with step by step
MrMuchimi

Answer:

See explanation

Step-by-step explanation:

In\: \triangle ABC \:\&\: \triangle EDC\\\angle ABC \cong \angle EDC... (Right \: \angle s) \\\angle ACB \cong \angle ECD... (Vertical \: \angle s) \\\therefore \triangle ABC \sim \triangle EDC... (By\: AA\: Postulate) \\

3 0
3 years ago
The average price of a gallon of orange juice in Newark, NJ is $6. The average price in Boston is 110% of the price in Newark. W
alina1380 [7]

Answer:

$12.60

Step-by-step explanation:

average price of a gallon of orange juice in Boston = average price in NJ + value of percentage increase over NJ's price

value of percentage increase over NJ's price  = 110% x $ 6

= 1.10 x $6 = 6.6

6.6 + 6 = $12.60

7 0
3 years ago
Last month, Levi had written 125 words of his book. This month, he is up to 12,580 words. About how many times more words has he
satela [25.4K]

Answer:

100 times more words in this month than in last month.

Step-by-step explanation:

Last month Levi had written 125 words.

This month he has written 12,589 words

This is  = 100.64 times more words than in last month

So..

Levi has written 100 more times words this month than in last month.

3 0
4 years ago
Annual salary plus bonus data for chief executive officers are presented in the BusinessWeek Annual Pay Survey. A preliminary sa
andrezito [222]

Answer: 176.

Step-by-step explanation:

Formula to find the sample size is given by :-

n=(\dfrac{z^*\cdot \sigma}{E})^2

, where \sigma = Population standard deviation from prior study.

E = margin of error.

z* = Critical value.

As per given , we have

\sigma=\$675000

E= $100,000

We take 95% confidence interval.

Critical value (Two tailed)=z^*=1.96

The required sample size = n=(\dfrac{(1.96)\cdot 675000}{100000})^2

n=(13.23)^2\\\\ n=175.03299\approx176 [Round to next integer]

Hence, the required sample size = 176.

6 0
3 years ago
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