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
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Answer:
13/10
Step-by-step explanation:
5* 1/2 + 2* 4/5
5/10 + 8/10 = 13/10
Answer:
#3
Step-by-step explanation:
Answer:
360 degrees make a complete circle of length 2πr
= 2 ×22/7 ×10 inch = 62.8 in
so
360 degree make arc of length 62.8in
1 degree will make arc length 62.8/360 =0.17in
so
54 degree will make arc length of 54× 0.17= 9.4 in
let's firstly convert the mixed fractions to improper fractions.
now, 1¼ dozen of cupcakes.... well, let's keep in mind that a dozen has 12 units, so 1¼ dozen is then 12(1¼) cupcakes total.