Branliest offered
1 answer:
You might be interested in
If <em>a</em> is the first term of an AP with common difference -2, then the first several terms are
<em>a</em>, <em>a</em> - 2, <em>a</em> - 4, <em>a</em> - 6, <em>a</em> - 8, …
with <em>n</em>-th term <em>a</em> - 2 (<em>n</em> - 1).
The sum of the first <em>n</em> terms is equal to the sum of the first 3<em>n</em> terms :
We have
so that in the previous equation, the sums reduce to
Solve for <em>a</em> :
Now if <em>a</em> = 27, we have
27 = 4<em>n</em> - 1
28 = 4<em>n</em>
<em>n</em> = 7
as required.
Answer:
$32.13
Step-by-step explanation:
You and your friend ordered two cheese burgers for $4.25 each, two fries for $1.28 each, and two colas for $1.98 each.
Total cost of the food =
sales tax is 4%. 4% of 15.02= 0.6008
tax amount i s 0.6008
tip amount is 15% of 15.02=
Total amount including tip and sales tax is
$50 bill. bill amount is 17.87
Amount received in change is