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4vir4ik [10]
3 years ago
14

A textbook costs $65.49 before tax. The tax on the textbook is 6.5%. What is the total cost of the textbook? Round your answer t

o the nearest cent.
Mathematics
1 answer:
Ghella [55]3 years ago
3 0

Answer: $69.75.


Step-by-step explanation:

Given: Cost of textbook before tax=$65.49

The tax on the textbook = 6.5%

∴ The tax amount = 6.5% of $65.49

=\frac{65}{1000}\times65.49=4.25685\approx4.26

⇒The tax amount = $4.26

The total cost of the textbook=Cost of textbook before tax+tax amount

=$65.49+$4.26

=$69.75

∴ The total cost of the textbook is $69.75.

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What is the span of the roof? A. 4 ft B. 12 ft C. 18 ft D. 24 ft
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4 0
3 years ago
Let p: the whole number has one digit. let q: the whole number is less than 10. which represents "the whole number has one digit
Hoochie [10]

"If and only if" (abbreviated "iff") is a biconditional logical connective between two assertions that is either true or untrue. The correct option is D.

<h3>What is "if and only if" operator?</h3>

In logic and related subjects such as mathematics and philosophy, "if and only if" (abbreviated "iff") is a biconditional logical connective between two assertions that is either true or untrue. It is represented by ⇔ or ↔.

The two of the events are

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Now, the representation of  "the whole number has one digit if and only if the whole number is less than 10" is done as p ↔ q.

Hence, the correct option is D.

Learn more about "if and only if" operator:

brainly.com/question/18301011

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