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S_A_V [24]
3 years ago
11

John took his pennies out of his piggy bank and discovered that he could put his pennies in equal piles of three, four, five, si

x, seven or eight. What is the least number of pennies that he could have had?
Mathematics
2 answers:
alexgriva [62]3 years ago
3 0

Answer:

Least number of pennies is 840


Step-by-step explanation:

To get the least number of pennies, we need to figure out the LCM of 3, 4, 5, 6, 7, & 8.


We do prime factorization of each number and take each unique digit the most number of times it occurs in any one of them.


3 is 3

4 is 2*2

5 is 5

6 is 3*2

7 is 7

8 is 2*2*2


There are 2s, 3s, 5s, and 7s. Two occurs three times (highest) in 8, so we take 2 three times, 3,4,5,&7 all occur highest 1 time. So we take them one.


So LCM = 2*2*2*3*5*7 = 840

Murrr4er [49]3 years ago
3 0
The answer is 840 I think
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3 years ago
On a particular production line,the likelihood that a light bulb is defective is 5%. Ten light bulbs are randomly selected. What
KengaRu [80]

Answer:

Mean and Variance of the number of defective bulbs are 0.5 and 0.475 respectively.

Step-by-step explanation:

Consider the provided information,

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Therefore sample size is = n = 10

Probability of a defective bulb = p = 0.05.

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Mean and Variance of the number of defective bulbs are 0.5 and 0.475 respectively.

5 0
3 years ago
Bill has saved $825 from his last 8 paychecks. He saved either $75 or $150 a paycheck. Formulate and solve a system of equations
11Alexandr11 [23.1K]

Answer: 5 times

Step-by-step explanation:

Let the number of times that he saved $75 be x.

Let the number of times that he saved $150 be y.

Therefore, based on the information given in the question, we can form an equation which will be:

x + y = 8 ...... i

75x + 150y = 825 ....... ii

From equation I,

x + y = 8

y = 8 - x....... iiii

Put equation iii into ii and this will be:

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He saved $75 5times from his paycheck.

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3 years ago
What is the volume of the right prism?
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Plug in what we know:

\sf~A=(9)(2)(6)

Multiply the three numbers together:

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3 years ago
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