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maria [59]
3 years ago
5

A piggy bank contains 4 quarters, 18 dimes, 10 nickels, and 8 pennies. A coin is chosen at random, not replaced, then another is

chosen. Find each probability.
P (both dimes).
Show work!!!!!
Mathematics
2 answers:
Aneli [31]3 years ago
8 0
4/40 18/40 10/40 8/40
Y_Kistochka [10]3 years ago
4 0

Answer:

about 0.196  

Step-by-step explanation:

4 + 18 + 10 + 8 = 40, this means that the piggy bank has 40 coins in total.  Probability of the FIRST coin being a dime is 18/40 and the probability of the SECOND coin being a dime too is 17/39. To find the answer you would multiply 18/40 x 17/39.

18/40 x 17/39 = 306/1560 = about 0.196  

Hope this helps :D

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A bank offers two special high-interest savings accounts if you deposit $500 and leave it untouched for 10 years. One pays 6 per
vazorg [7]

Answer:

The compound interest one is better by about 14 bucks.

Step-by-step explanation:

Simple interest:

500(1+.06*10)=800

Compound interest:

500(1+.05)¹⁰=814.45

6 0
3 years ago
Select the correct answer.<br> What are the solutions of this quadratic equation?<br> 25x^2 + 1 = 0
Llana [10]

Answer:

no solution because the square root of a negative number is not a real number d=-100

4 0
3 years ago
Mr. Anderson wrote (7x9) 103 on the board. What is the value of that expression
RUDIKE [14]

Answer:

6,489

Step-by-step explanation:

first you would multiply 7 and 9, which would be 63

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then you would multiply 63 by 103 since they are being multiplied

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8 0
3 years ago
This is the answer to Jo question
Dahasolnce [82]

Answer:

Kindly check explanation

Step-by-step explanation:

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8 0
3 years ago
Which is a zero of the quadratic function f(x) = 9x2 – 54x – 19?
liraira [26]

Answer: Third Choice. x= 6 1/3

Step-by-step explanation:

Given

f(x) = 9x² - 54x - 19

Completing the square

3x          -19

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Simplify

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Hope this helps!! :)

Please let me know if you have any questions

7 0
3 years ago
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