A general equation to use for this situation is y = mx + b.
For this question, we can assume that y is total cost, m is cost per balloon, x is the amount of balloons, and b as the service fee; so we can set the equation up:
y = (4.50)x + 12
And we can further plug in the total cost to find the number of balloons purchased for the party:
79.50 = (4.50)x + 12
Now we can solve for x (number of balloons):
67.50 = (4.50)x
x = 15
The total number of balloons purchased for the party is 15.
Answer:
Formula for an opened end of a cylinder =
Closed at both end =
Opened at both end =
Step-by-step explanation:
23 1/8
(7+15) + (1/4 +7/8)
22 + 2/8 + 7/8
22+ 9/8
23 1/8
