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2 years ago

A new car worth 24000 is depreciating in value by 3000 per year after how many years will the car be 12000

Mathematics

2 answers:

AveGali [126]2 years ago

7 0

Answer:

4 years

Step-by-step explanation:

need to see how many times 3000 can go in 24000 and count how many years tell u get 12000

hopes I helped

Oliga [24]2 years ago

5 0

Answer:

4 years

Step-by-step explanation:

subtract 3000 from 24000 then 3000 from the sum of each answer till you get to 12,000

after year 1: $21,000

24,000 - 3,000 = 21,000

after year 2: $18,000

21,000 - 3,000 = 18,000

after year 3: $15,000

18,000 - 3,000 = 15,000

after year 4: $12,000

15,000 - 3,000 = 12,000

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Solving problems with decimal points

vazorg [7]

Answer: what do you need help with

Explanation: you never posted a problem

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2 years ago

PLEASE HELP I HAVE NO IDEA WHAT IM DOING!!!

algol13

Answer: 28.26

Step-by-step explanation:

What your looking for is called the annulus (or the difference of two concentric circles). You can find the annulus by subtracting the area of the inner circle from the area of the outer circle. Volume of a circle= πr²

You are given the diameter in these problems, so you need radius.

For the first circle (8 in one) :

8/2=4 r=4

A=3.14(4)²

A=50.24

For the second one (10 in one) :

10/2=5 r=5

A=3.14(5)²

A=78.5

To find the measure of the annulus, you subtract those numbers, getting 28.26

8 0

3 years ago

Can someone help pls.

kap26 [50]

My goodness, this is rather confusing in the way it is worded. Nevertheless, I will attempt to do what I can. Just please keep in mind that this is my own interpretation of the problem, and therefore could be... incorrect.

I think, to start out, we could set up the problem like so

15 + t ≥ 26

because t is not a set number.

Then all that is needed is to subtract 15 from both sides, and the equation becomes

t ≥ 11

So the resulting answer is t ≥ 11.

I hope that my interpretation helps.

-Toremi

8 0

2 years ago

Read 2 more answers

If 90 percent of automobiles in Orange County have both headlights working, what is the probability that in a sample of eight au

Marta_Voda [28]

Answer:

$P(X \geq 7) = P(X=7) +P(X=8)$

And we can find the individual probabilities using the probability mass function

$P(X=7)=(8C7)(0.9)^7 (1-0.9)^{8-7}=0.3826$

$P(X=8)=(8C8)(0.9)^8 (1-0.9)^{8-8}=0.4305$

And replacing we got:

$P(X \geq 7) = P(X=7) +P(X=8)=0.3826 +0.4305=0.8131$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest "number of automobiles with both headligths working", on this case we now that:

$X \sim Binom(n=8, p=0.9)$