Questions on Algebra: Real numbers, Irrational numbers, etc answered by real tutors!

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Question 150088: the value of the expression 3910 + 0.25 (X-28,400) is the 2003 federal income tax for a single taxpayer with taxable income of x dollars, where x is over $28, 400 but not over $68,000. What is the amount of tax for a single taxpayer with taxable income os $40,000?: the value of the expression 3910 + 0.25 (X-28,400) is the 2003 federal income tax for a single taxpayer with taxable income of x dollars, where x is over $28, 400 but not over $68,000. What is the amount of tax for a single taxpayer with taxable income os $40,000?
Answer by nerdybill(1051) About Me  (Show Source):
You can put this solution on YOUR website!
Given:
3910 + 0.25 (X-28,400)
Solve when x= 40000
.
Plugging in our value:
3910 + 0.25 (40000-28,400)
= 3910 + 0.25 (11600)
= 3910 + 2900
= $6,810