anonymous
  • anonymous
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.
Mathematics
chestercat
  • chestercat
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Nnesha
  • Nnesha
how to find average ?
anonymous
  • 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.
Nnesha
  • Nnesha
average = sum of the numbers divide by the number of numbers

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anonymous
  • anonymous
is that for the first answer?
Nnesha
  • Nnesha
yes that's the formula to find average
anonymous
  • anonymous
ok um... how do i find the sum, and how do i divide by the number of numbers? :) @Nnesha
Nnesha
  • Nnesha
sum means add so add all the numbers and then divide by the number of the numbers
Nnesha
  • Nnesha
how many numbers are there ?
anonymous
  • anonymous
i add 2.64 and 0.35?
Nnesha
  • Nnesha
`2.64 degrees Celsius, negative 2 over 9 degrees Celsius, −0.35 degrees Celsius, 5 over 8 degrees Celsius` ADD all of them
anonymous
  • anonymous
ok
anonymous
  • anonymous
i got 2.69277778 @Nnesha
Nnesha
  • Nnesha
yes right now how many numbers are in the list ?
Nnesha
  • 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 ?
anonymous
  • anonymous
4
Nnesha
  • Nnesha
yes right so divide by 4
anonymous
  • anonymous
i divide 2.69277778 / 4 like that?
anonymous
  • anonymous
anonymous
  • anonymous
i got 0.67319444 @Nnesha
anonymous
  • 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.
anonymous
  • anonymous
and please write all the steps and show the work
Nnesha
  • Nnesha
average is same as slope that tells us how to data is increasing or decreasing everyday that's it
anonymous
  • anonymous
but it says to write an expression
Nnesha
  • Nnesha
0.67319444 round nearest hundredth
anonymous
  • anonymous
but for number 1 its says to write an expression
Nnesha
  • Nnesha
okay so average = write all numbers / 4 how did you type into the calculator what's what you have to write
Nnesha
  • Nnesha
like for example \[\frac{ 2+3+4 }{ 3}\]
anonymous
  • anonymous
to make it easier just give me the full answer for number 1
Nnesha
  • Nnesha
what do you mean give me the answer we already go over that just rewrite it in ur notebook.
anonymous
  • anonymous
what is it?
Nnesha
  • Nnesha
what we just found ?
anonymous
  • anonymous
whats the answer for number 1?
Nnesha
  • 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
Nnesha
  • 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

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