Answer:
Step-by-step explanation:
multiply .20 with 40
which gets you 8
subtract 8 from 40
which is 32
multiply .05 with 32
which is 1.6
subtract 1.6 from 32 which gets you $30.40
If the diameter of the cone is 5, then the radius of it will be half that, or 2.5, thus
Answer:
y+3=-5(x-4)
Add 20 characters to explain the point
The amount of money she spends per year on utility bills for the air conditioner is; D: $176.40
<h3>How to solve algebra word problems? </h3>
We are told that;
Cost of running the air conditioner = 7 hours per day
Cost of running the air conditioner = 21 cents per hour = $0.21 per hr.
She runs it for four months at 7 hours per day. Thus;
Total number of hours for the 4 months = 7 × 30 × 4 = 840 hours
Total cost for the 4 months = $0.21 per hr. × 840 hours = $176.4
Read more about algebra word problems at; brainly.com/question/21405634