Given:
Cost of dishwasher : 315 before sales tax
sales tax : 9.22%
Total cost = 315 * 1.0922 = 344.043
Average of 10 uses per week for the next 6 years before replacing it.
There are 52 weeks in a year.
10 uses per week * 52 weeks per year * 6 years = 3120 average uses
cost for water = 0.09 ; cost for electricity = 0.13 ; total cost per use = 0.22
0.22 * 3120 = 686.40 cost of use
purchase cost = 344.043
cost of use = <u>686.40</u>
lifetime cost 1,030.443
Answer:
D. 65°
Step-by-step explanation:
The measure of the angle at crossed chords is the average of the measures of the intercepted arcs:
m∠XYZ = (1/2)(arc XZ +arc WV)
m∠XYZ = (1/2)(86° +44°) = 130°/2
m∠XYZ = 65°
Answer:
The possible numbers the chemistry club could rent the room is less than 6 hours(t<6)
Step-by-step explanation:
Reservation fee = 15
Additional fee of 5 per hour
If the chemistry club wants to spend less than 45 on renting the room, let the possible number of hours be t.
t = time
15 + 5t < 45
5t < 45 - 15
5t < 30
t < 30/5
t < 6 hours
45 + 46 + 47 = 138
Hope this helps!
