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3 years ago

Which would you consider to be more accurate, a probability experiment of 10 trials or a probability experiment of 100 trials

1 answer:

8 0

I would 100 because the more the trials means the more the results which means you get more of an accurate experiment then if you only did 10. Because since you have so many answers from all of the experiments you can conclude the correct answer from all of the experiments. I hope you get what I’m trying to say

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A student's pay of $23 an hour at a new job is $6 more than twice the amount the student earned per hour at an internship. Write

babunello [35]

The equation would be 309.8=9.65x, where x=number of hours you worked this week. You would then solve the equation by dividing 309.8 by 9.65.

6 0

3 years ago

Read 2 more answers

An item is regularly priced at 25. It is on sale for 80% off the regular price. What is the sale price?

Burka [1]

answer:

sale price: $5

explanation:

total price is always 100%

sale price is 80% off,

sale price: 100% - 80% = 20%

solve:

→ 20% * $25

→ $5

7 0

2 years ago

Read 2 more answers

How do I Solve for x: -2(x+3)=-2x-6

BlackZzzverrR [31]

Answer:

Step-by-step explanation:

all you need to do is use the distributive property and then you"ll get the answer

8 0

3 years ago

A box of chocolate is divided among Jim, Jack and David. David gets 2/5 of the box and Jack gets 1/5 of David's share and the re

Elan Coil [88]

Answer:

200

Step-by-step explanation:

Jack share = 2/5 x 1/5 = 2/25

amount left over = 1 - (2/25 + 2/5) = 13/25

13/25 x t = 260

t = total amount of chocolate

t = (260 x 25) / 13 = 500

Davids share = 2/5 x 500 = 200

8 0

2 years ago

In 2018, the population will grow over 700,000.The population of a city in 2010 was 450,000 and was growing at a rate of 5% per

Firlakuza [10]

Answer:

The year is 2020.

Step-by-step explanation:

Let the number of years passed since 2010 to reach population more than 7000000 be 'x'.

Given:

Initial population is, $P_0=450,000$

Growth rate is, $r=5\%=0.05$

Final population is, $P=700,000$

A population growth is an exponential growth and is modeled by the following function:

$P=P_0(1+r)^x$

Taking log on both sides, we get:

$\log(P)=\log(P_0(1+r)^x)\\\log P=\log P_0+x\log (1+r)\\x\log (1+r)=\log P-\log P_0\\x\log(1+r)=\log(\frac{P}{P_0})\\x=\frac{\log(\frac{P}{P_0})}{\log(1+r)}$

Plug in all the given values and solve for 'x'.

$x=\frac{\log(\frac{700,000}{450,000})}{\log(1+0.05)}\\x=\frac{0.192}{0.021}=9.13\approx 10$

So, for $x > 9.13$ , the population is over 700,000. Therefore, from the tenth year after 2010, the population will be over 700,000.

Therefore, the tenth year after 2010 is 2020.

8 0

2 years ago