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zlopas [31]
3 years ago
6

Part 1: How's the weather?

Mathematics
2 answers:
mariarad [96]3 years ago
8 0

Answer:

Part 1: How's the weather? Investigate the weather forecast in your city.

Record the high and low temperatures that are forecast for the next 7 days in the table below. In the columns titled, Difference," record the change in temperature from the day before. To do this, subtract the previous temperature from the current temperature Be sure to use positive and negative numbers as needed! For example, if yesterday’s temperature was 70 and today’s temperature was 65, the difference is 65 – 70 = -5.

Date

High Temperature

Subtract previous temperature from current temperature

Difference

Low Temperature

Subtract previous temperature from current temperature

Difference

1

10-24-21

75

-N/A-

-N/A-

57

-N/A-

-N/A-

2

10-25-21

81

75

6

55

57

-2

3

10-26-21

82

81

1

61

55

6

4

10-27-21

81

82

-1

61

61

0

5

10-28-21

81

75

6

63

61

2

6

10-29-21

75

81

-6

61

63

-2

7

10-30-21

72

75

-3

55

61

-6

Note: The columns for Day One's subtraction and difference cannot be filled in. As this is the first data point, there is no previous temperature to subtract.

Write a mathematical expression using the information from your table to answer the following questions:

What is the mean change in the forecaster high temperatures? Remember, this can be found by averaging the values in the Difference column for the high temperatures. Show your work and steps. If your answer is not an integer, explain what two integers your answer is between.

What is the mean change in the forecaster low temperatures? Remember, this can be found by averaging the values in the Difference column for the low temperatures. If your answer is not an integer, explain what two integers your answer is between.

Step-by-step explanation:

Rainbow [258]3 years ago
4 0
You do realize nobody’s gonna answer your question right
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Mr. Jones purchased two sodas.
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Answer:

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Step-by-step explanation:

Let 'a' and 'b' represent the costs of the two sodas. The given relations are ...

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Adding these two equations, we get ...

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_____

<em>Additional comment</em>

This is a "sum and difference" problem, in which you are given the sum and the difference of two values. As we have seen here, <em>the larger value is half the sum of the sum and difference</em>: a = (1+1.10)/2 = 1.05. If we were to subtract one equation from the other, we would find <em>the smaller value is half the difference of the sum and difference</em>: b = (1.05 -1.00)/2 = 0.05.

This result is the general solution to sum and difference problems.

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Step-by-step explanation:

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