Answer:
- c(m) = 39.95 +0.35m
- 85 minutes over 500
Step-by-step explanation:
Let m represent the number of minutes used over 500. Then the cost of the cell phone plan is ...
c(m) = 39.95 +0.35m
__
For a cost of 69.70, the number of excess minutes can be found by solving ...
69.70 = 39.95 +0.35m
29.75 = 0.35m . . . . . . . . . subtract 39.95
29.75/0.35 = m = 85 . . . . divide by the coefficient of m
The number of minutes of usage over 500 is 85.
All we need to do is subtract each number by 344 and see which number is the lowest
344 - 320 = 24
360 - 344 = 16
Therefore, 360 is closest to 344
Hope this helps
-AaronWiseIsBae
Answer:
56.25 miles
Step-by-step explanation:
Walker wants to visit petrified national forest and meteor crater.
On a map, a scale is 2 inches = 75 miles.
The national forest and meteor crater are about 1 and a half inches apart.
Let x miles be the actual distance between national forest and meteor crater.
Then
2 inches - 75 miles
inches - x miles.
Write a proportion:
Cross multiply
Or you can think in such way:
2 inches - 75 miles
1 inch - 37.5 miles
1/2 inch - 18.75 miles
1 1/2 inches - 37.5 + 18.75 = 56.25 miles