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
andre [41]
3 years ago
10

Describe how to use a ten fact to find the difference for fifteen take away eight

Mathematics
1 answer:
sertanlavr [38]3 years ago
6 0
15 - 8

8 + 2 is 10, so there are 5 leftover. 2 + 5 is 7, so 8 + 7 is 15.
You might be interested in
Can anyone help with math models?? Please…?
Solnce55 [7]

Answer:

12*1/4= 3

30 is C

16*3/4 = 12

31 is B

8 0
2 years ago
Read 2 more answers
This is timed and I just need to see if i’m right! please check my work :)
Misha Larkins [42]
Hi! actually, the y intercept is 0, 8. hopefully this helps
4 0
3 years ago
Find −1/5+17/10. Please help me!
alina1380 [7]
I got 1.5, but I could be wrong.
7 0
3 years ago
A random sample of 250 students at a university finds that these students take a mean of 15.3 credit hours per quarter with a st
SpyIntel [72]

Answer:  15.3\pm0.198

OR

(15.102, 15.498)

Step-by-step explanation:

The formula to find the confidence interval(\mu) is given by :-

\overline{x}\pm z_{\alpha/2, df}\dfrac{s}{\sqrt{n}}

, where n is the sample size

s = sample standard deviation.

\overline{x}= Sample mean

z_{\alpha/2} = Two tailed z-value for significance level of \alpha .

Given : Confidence level = 95% = 0.95

Significance level = \alpha=1-0.95=0.05

s= 1.6

\overline{x}=15.3

sample size : n= 250 , which is extremely large ( than n=30) .

So we assume sample standard deviation is the population standard deviation.

thus , \sigma=1.6

By standard normal  distribution table ,

Two tailed z-value for Significance level of 0.05 :

z_{\alpha/2}=z_{0.025}=1.96

Then, the 95% confidence interval for the mean credit hours taken by a student each quarter :-

15.3\pm (1.96)\dfrac{1.6}{\sqrt{250}}\\\\ =15.3\pm 0.19833\\\\=\approx15.3\pm0.198\\\\=(15.3-0.198,\ 15.3+0.198)=(15.102,\ 15.498)

Hence, the mean credit hours taken by a student each quarter using a 95% confidence interval. =(15.102, 15.498)

5 0
3 years ago
Negative ten is no less than two times a number plus fourteen
creativ13 [48]
All you do is change signs write 2x minus 14 equals negative 10-14 equals four then you write 2x over two equals four over two then u write x equals negative two
5 0
3 years ago
Other questions:
  • What is 5.2E11 in scientific notation
    13·2 answers
  • PLEASE HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER
    5·1 answer
  • two dice are rolled in succession. determine the probability that their sum is 8 or more, given that the first die is a 4 or mor
    10·1 answer
  • A cylinder has a radius of X +2 and a height of X +4 which polynomial in standard form best describes the total volume of the cy
    7·1 answer
  • When i shift the graph of y=2x+5
    7·1 answer
  • Are 4x and 15 + x equivalent expressions
    14·1 answer
  • Help plz!!!!!!!!!!!!!!!!!!!!
    13·2 answers
  • Line segment AB is the diameter of circle C. If the endpoints of the diameter are (3, -4) and (7,2), what are the coordinates of
    14·1 answer
  • Which graph represents the solution set for the inequality 7.5 < x?
    8·1 answer
  • A27=16<br> a<br> 27<br> =<br> 16<br> . What is the value for a?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!