Johnny sold crafts at a show. His prices included .07 sales tax. Johnny grossed $1236.00. What was johnny's taxable amount?
1 answer:
The taxable amount was $80.86
Step-by-step explanation:
Given,
Sales tax = .07
Total grossed = $1236.00
Let,
x be the price before sales tax, therefore,
Amount of sales tax = 0.07x
Price before sales tax + Sales tax = Total amount grossed
x+0.07x = 1236
1.07x=1236
Dividing both sides by 1.07
Taxable amount = Total amount grossed - Price before tax
Taxable amount = 1236 - 1155.14 = $80.86
The taxable amount was $80.86
Keywords: subtraction, addition
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= 9n + 63
generate the first few terms using the recursive equation
f(1) = 72
f(2) = 72 + 9 = 81
f(3) = 81 + 9 = 90
f(4) = 90 + 9 = 99
the sequence is 72, 81, 90, 99, .....
This is an arithmetic sequence whose n th term formula is
=
+ (n - 1 )d
where is the first term and d the common difference
d = 99 - 90 = 90 - 81 = 81 - 72 = 9 and = 72
= 72 + 9(n - 1) = 72 + 9n - 9 = 9n + 63 ← explicit formula
Answer:
The domain of the inverse of a relation is the same as the range of the original relation. In other words, the y-values of the relation are the x-values of the inverse.
Thus, domain of f(x): x∈R = range of f¯¹(x)
and range of f(x): x∈R =domain of f¯¹(x)