Round off the following numbers to the nearest thousand. 19. 674,620 20. 355,500
1 answer:
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Answer:
The point that the graph does not pass through is (3,1)
Step-by-step explanation:
we have
(0, 5), (2, 2), (3, 1), and (4, -1)
Draw the points, and join them to plot the linear equation and determine which point does not belong to the line.
using a graphing tool
see the attached figure
therefore
The point that the graph does not pass through is (3,1)
The linear equation used to solve the problem is t = 2 + 1.29a and total cost to download 30 songs is $ 40.7
<em><u>Solution:</u></em>
Given that music app charges $2 to download the app plus $1.29 per song downloaded
To find: write and solve a linear equation to find the total cost to download 30 songs
Let us first write a expression for total cost
Let "a" be the number of songs downloaded
So we can frame a equation as:
total cost = initial charge + cost of 1 song download x number of songs downloaded
total cost = 2 + 1.29a
If "t" represents the total cost, then the linear equation is:
t = 2 + 1.29a
<em><u>finding the total cost to download 30 songs:</u></em>
Here a = 30
Substitute a = 30 in above formula
total cost = 2 + 1.29(30)
total cost = 2 + 38.7
total cost = 40.7
Thus total cost to download 30 songs is $ 40.7