Given:
hours parking charge
4 5.50
7 7.75
7 - 4 = 3 hours
7.75 - 5.50 = 2.25
2.25 / 3 = 0.75
0.75 is the change in amount for every hour spent. It is the variable unit rate
4 hours is 5.50.
Cost of parking for 3 hours is: 5.50 - 0.75 = 4.75
0.75 x 4 hours = 3
5.50 - 3 = 2.5 fixed charge.
total parking charge: y = 2.50 + 0.75x
Answer:
A
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
BC² = 9² + 12² = 81 + 144 = 225 ( take the square root of both sides )
BC =
= 15 → A
Answer:
It landed at a height of 14 feet
Step-by-step explanation:
Given
--- Path of a t-shirt
--- height of bleachers
Required
Height when t-shirts land in bleachers

Make y the subject

Substitute
in 

Multiply through by 24

Express as:


Using a calculator:
or 
x can not be negative:
So:

Substitute
in
to calculate the height it landed


Answer:
D.82.8°
Step-by-step explanation:
Hope it helps
Have a great day
Answer:
A. 1
Step-by-step explanation:
In each football game there is only 1 halftime