The newest cellular phone costs $784.26 after a 5.5% sales tax is applied. What is the cost of the cellular phone before sales t
1 answer:
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Answer:
x= 23.0 (nearest tenth)
Step-by-step explanation:
Please see the attached picture for the full solution.
Step-by-step explanation:
A) In order to calculate the interest , we can use the following formula :
Where P is the interest , P0 is the initial value, i is the interest and t is the time.
So , using P0 =600,i= 0.0005768 and t=27 ,we have :
Calculating only the interest, we have :
So the interest is $9.41.
B) He paid the final value calculated above, that is , $609.41.
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