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3 years ago

Please help me , Thanks

Mathematics

1 answer:

Stolb23 [73]3 years ago

5 0

Yeah sure please, can you please post your message? so that we can help

P.S: sorry I have not observed the attachment, let me please look into it

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Remi has $8.40 in a jar that contains only nickels and dimes. There are 108 coins in the jar. How many nickles are in the jar

Anit [1.1K]

There are 21 nickles in the jar.

4 0

3 years ago

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Police estimate that 25% of drivers drive without their seat belts. If they stop 6 drivers at random, find the probability tha

Furkat [3]

Answer:

17.80% probability that all of them are wearing their seat belts.

Step-by-step explanation:

For each driver stopped, there are only two possible outcomes. Either they are wearing their seatbelts, or they are not. The drivers are chosen at random, which mean that the probability of a driver wearing their seatbelts is independent from other drivers. So we use the normal probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

Police estimate that 25% of drivers drive without their seat belts.

This means that 75% wear their seatbelts, so $p = 0.75$

If they stop 6 drivers at random, find the probability that all of them are wearing their seat belts.

This is $P(X = 6)$ .

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 6) = C_{6,6}.(0.75)^{6}.(0.25)^{0} = 0.1780$

17.80% probability that all of them are wearing their seat belts.

3 0

3 years ago

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Use the number line to find the equivalent fraction

kifflom [539]

I think that the Equivalent fraction is 6/8

3 0

3 years ago

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I need help please ASAP full points

kotegsom [21]

The best way to solve this problem is with a simple equation: part = percent (in decimal form) x whole

In this problem, we're trying to solve for the whole amount that the camera can hold, so we'll assign that the variable w.

We can use the information they gave us - 96 is the part, and 24% is the percent. We'll convert that to decimal form - 0.24

Then, we just plug these values back into the above equation:

96 = 0.24w

Divide both sides by 0.24 to get w on it's own, and you have your answer!

400 = w

Therefore, the memory card can hold up to 400 pictures.

Note: this equation is super helpful. It's good to have on hand for any problem involving percents, because you can solve for the part, percent, or whole depending on the problem.

4 0

3 years ago

What is the product? 5[2,3,4,9,-1,-7,11,5,-3]

BabaBlast [244]

Answer:

The first option

Step-by-step explanation:

5*2=10

5*3=15

5*4=20

so it should start with [10 15 20]

8 0

3 years ago

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