Answer:
108
Step-by-step explanation:
cross multiply fractions:
12/72 = 18/x
x = 108
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:
Answer:
To find the perimeter of the triangle, you would add p + m + n. To find the area of the triangle you would use (p x m) /2. To find a missing side of the triangle, given that it is a right triangle, you would use p^2 + m^2 = n^2
Answer:
option (B) 20
Step-by-step explanation:
Data provided in the question:
Number of photographs initially sold = 20
selling price of first 20 photographs = $10 each
Therefore,
Revenue from 20 photographs = 20 × $10 = $200
Selling price of further photographs = $15
Let the number of additional photographs sold be 'x'
thus,
total revenue = $200 + $15x
now,
according to the question
80% of ($200 + $15x) = $400
or
0.80 × ($200 + $15x) = $400
or
($200 + $15x) = $500
or
$15x = $300
or
x = 20
Hence,
the answer is option (B) 20
