1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fantom [35]
3 years ago
10

Evaluate the expression for x = 15. X - 5 =

Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
4 0

Steps to solve:

x - 5 for x = 15

~Substitute

15 - 5

~Subtract

10

Best of Luck!

Tatiana [17]3 years ago
4 0

Answer:10

Explanation:

15-5=10

Hope this helps

You might be interested in
Find two decimals with a product between 1 and 2
Alecsey [184]

Answer:

.5 × 3.2 = 1.6

This gives you 1.6, which is between 1 and 2

Step-by-step explanation:


5 0
3 years ago
Please help I need answer quick thank you
eduard
The answer is D). Hope I was able to help

5 0
3 years ago
Read 2 more answers
For a particular diamond mine, 81% of the diamonds fail to qualify as "gemstone grade". A random sample of 92 diamonds is analyz
Fed [463]

Answer:

68.79% probability that more than 79% of the sample diamonds fail to qualify as gemstone grade

Step-by-step explanation:

We use the binomial approximation to the normal to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

n = 92, p = 0.81

So

\mu = E(X) = np = 92*0.81 = 74.52

\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{92*0.81*0.19} = 3.76

Find the probability that more than 79% of the sample diamonds fail to qualify as gemstone grade.

This is 1 subtracted by the pvalue of Z when X = 0.79*92 = 72.68. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{72.68 - 74.52}{3.76}

Z = -0.49

Z = -0.49 has a pvalue of 0.3121

1 - 0.3121 = 0.6879

68.79% probability that more than 79% of the sample diamonds fail to qualify as gemstone grade

4 0
3 years ago
I need help with this​
Arturiano [62]

Answer:

With what? i dont see the picture

Step-by-step explanation:

5 0
2 years ago
Tyler walked 6 miles in 3 hours. What was his walking rate in miles per hour
BARSIC [14]

Answer:

This comes out to 2 mph.

Step-by-step explanation:

Reduce the following fraction:

 6 miles

---------------

  3 hours

This comes out to 2 mph.

8 0
3 years ago
Other questions:
  • What is the least number of packs of each you can buy? A? B? C? D?
    12·1 answer
  • In circle Y, what is m?<br><br> 82°<br> 100°<br> 106°<br> 118°
    8·1 answer
  • 14400:(270-х)+520=680
    6·1 answer
  • The green line below____. Check all that apply. I need help plz
    10·1 answer
  • A wheelchair ramp that is constructed to rise 1 foot off the ground must extend 12 feet along the ground. How long will the whee
    5·1 answer
  • I’m stuck on this I’ll give u brainlieast if you answer correctly !
    7·1 answer
  • A = 6x-11<br> g= 36<br> n = 7x - 27<br> Solve for x
    13·1 answer
  • A survey asked 10 boys and 10 girls how many hours they spent playing video games the previous week. The number of hours are giv
    15·2 answers
  • Help me solve this problem plsssss ​
    7·1 answer
  • Equivalent (x+ 4)(2r - 1)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!