anonymous one year ago PLEASE HELP :) A newspaper reports the following changes in the temperature of a city over 4 days: 2.64 degrees Celsius, negative 2 over 9 degrees Celsius, −0.35 degrees Celsius, 5 over 8 degrees Celsius Write an expression to show the average daily change in the temperature of the city. Write the steps to solve the expression. Round your answer to the nearest hundredth.

1. Nnesha

how to find average ?

2. anonymous

no just answer these two questions.. Write an expression to show the average daily change in the temperature of the city. Write the steps to solve the expression. Round your answer to the nearest hundredth.

3. Nnesha

average = sum of the numbers divide by the number of numbers

4. anonymous

is that for the first answer?

5. Nnesha

yes that's the formula to find average

6. anonymous

ok um... how do i find the sum, and how do i divide by the number of numbers? :) @Nnesha

7. Nnesha

sum means add so add all the numbers and then divide by the number of the numbers

8. Nnesha

how many numbers are there ?

9. anonymous

10. Nnesha

2.64 degrees Celsius, negative 2 over 9 degrees Celsius, −0.35 degrees Celsius, 5 over 8 degrees Celsius ADD all of them

11. anonymous

ok

12. anonymous

i got 2.69277778 @Nnesha

13. Nnesha

yes right now how many numbers are in the list ?

14. Nnesha

2.64 degrees Celsius, negative 2 over 9 degrees Celsius, −0.35 degrees Celsius, 5 over 8 degrees Celsius how many numbers are there ?

15. anonymous

4

16. Nnesha

yes right so divide by 4

17. anonymous

i divide 2.69277778 / 4 like that?

18. anonymous

@Nnesha

19. anonymous

i got 0.67319444 @Nnesha

20. anonymous

ok so whats the answer for the first question? Write an expression to show the average daily change in the temperature of the city.

21. anonymous

and please write all the steps and show the work

22. Nnesha

average is same as slope that tells us how to data is increasing or decreasing everyday that's it

23. anonymous

but it says to write an expression

24. Nnesha

0.67319444 round nearest hundredth

25. anonymous

but for number 1 its says to write an expression

26. Nnesha

okay so average = write all numbers / 4 how did you type into the calculator what's what you have to write

27. Nnesha

like for example $\frac{ 2+3+4 }{ 3}$

28. anonymous

to make it easier just give me the full answer for number 1

29. Nnesha

what do you mean give me the answer we already go over that just rewrite it in ur notebook.

30. anonymous

what is it?

31. Nnesha

what we just found ?

32. anonymous

whats the answer for number 1?

33. Nnesha

$$\color{blue}{\text{Originally Posted by}}$$ @Nnesha average = sum of the numbers divide by the number of numbers $$\color{blue}{\text{End of Quote}}$$ $$\color{blue}{\text{Originally Posted by}}$$ @geny55 i got 2.69277778 @Nnesha $$\color{blue}{\text{End of Quote}}$$ $$\color{blue}{\text{Originally Posted by}}$$ @geny55 i divide 2.69277778 / 4 $$\color{blue}{\text{Originally Posted by}}$$ @geny55 i got 0.67319444 @Nnesha $$\color{blue}{\text{End of Quote}}$$ now round that to nearest hundredth

34. Nnesha

for first one write $\huge\rm average = \frac{ (a+b+c+D )}{ total ~number }$ replace a ,b,c,d by the numbers u added and then replace total number with 4