Answer:
A
Step-by-step explanation:
Slope Intercept form is y=mx+b where m is the slope and b is the y-intercept. The line crosses through (0,3) so b=3.
To find the slope, count the units between two points and form a ratio of vertical to horizontal distance. Count from (0,3) to (1,0). It drops -3 units and moves to the right 1 unit. So m = -3/1 = -3.
The equation is y = -3x+3
Let c be total cost, while m is the minutes above the base minutes;
C=34.99+0.23*m
C=34.99+0.23m
Note, m= total minutes - 100
9/2 is greater than 10/7 because 9/2 as a mixed number is 4 1/2 and 10/7 as a mixed number is 1 3/7
Answer:
50.1 deg F
Step-by-step explanation:
1.6deg F for every 1,000ft. You need to get to 9,000ft. 1.6degx9=14.4
64.5deg-14.4deg=50.1degF