All categories

3 years ago

State two numbers such that the lesser number is 25% less than the greater number

Mathematics

2 answers:

goldfiish [28.3K]3 years ago

8 0

200 and 150 because 25% of 200 is 50 so subtract 50 from 200 because it is supposed to be 25% smaller

lord [1]3 years ago

4 0

So how about 100 and 75

32 and 24

You might be interested in

Use the model to solve for x.

Vitek1552 [10]

Answer:No solution
Explanation: There is no solution because x was eliminated in the last step of solving for x. Since we were left with x not being available to equal three, it shows it’s a no solution problem. Hope this helped!

4 0

2 years ago

Maggie is practicing her penalty kicks for her upcoming soccer game. During the practice, she attempts 10 penalty kicks. If each

arlik [135]

Answer:

$P(X \geq 8)= P(X=8) +P(X=9) +P(X=10)$

And we can find the individual probabilities like this:

$P(X=8)=(10C8)(0.65)^0 (1-0.65)^{10-8}=0.176$

$P(X=9)=(10C9)(0.65)^1 (1-0.65)^{10-9}=0.072$

$P(X=10)=(10C10)(0.65)^2 (1-0.65)^{10-10}=0.013$

And adding we got:

$P(X \geq 8)= P(X=8) +P(X=9) +P(X=10)= 0.176+0.072+0.013=0.262$

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".

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=10, p=0.65)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

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

Solution to the problem

For this case we want to find this probability:

$P(X \geq 8)= P(X=8) +P(X=9) +P(X=10)$

And we can find the individual probabilities like this:

$P(X=8)=(10C8)(0.65)^0 (1-0.65)^{10-8}=0.176$

$P(X=9)=(10C9)(0.65)^1 (1-0.65)^{10-9}=0.072$

$P(X=10)=(10C10)(0.65)^2 (1-0.65)^{10-10}=0.013$

And adding we got:

$P(X \geq 8)= P(X=8) +P(X=9) +P(X=10)= 0.176+0.072+0.013=0.262$

5 0

3 years ago

If they are going 12 miles per 1/3 hour . What is the average speed per hour in miles

jasenka [17]

Answer:

12 miles per (1/3) hour equals

36 miles per hour

Step-by-step explanation:

3 0

3 years ago

What percent of 74 is 13.6? Write your answer to the nearest tenth.

puteri [66]

Answer:

18.37 is the answer so it should be 18.4

Step-by-step explanation:

7 0

2 years ago

Help asap

Nikolay [14]

First, you would create an equation for this problem.
$\frac{18}{15}$ = $\frac{x}{100}$

Next, you would cross multiply.
15x = 1,800

Now, you would isolate the x. To do this, you would divide both sides by 15.
x = 120

It is a 120% increase.

I hope this helps!

7 0

3 years ago

Read 2 more answers