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2 years ago

57 dollars, 30% tax what is the total price

Mathematics

2 answers:

DedPeter [7]2 years ago

6 0

Answer:190

Step-by-step explanation:

podryga [215]2 years ago

3 0

Answer:

Total price: $74.10

Step-by-step explanation:

Given the $57 amount, and the additional 30% tax:

<h2>Step 1: Conversion of 30% to Decimal Form</h2>

First, we must determine the nominal amount of 30% tax. In order to do so, simply convert 30% to its decimal form:

<h3><u>Conversion methods from percentage to decimal form:</u></h3>

Method 1: move the decimal point two places to the left, which results in 0.30.

Method 2: Divide 30 by 100: $\displaystyle\mathsf{\frac{30}{100}\:=\:0.30}$

<h2>Step 2: Determine the nominal equivalence of 0.30 (tax)</h2>

Multiply $57 by 0.30 to find how much is the dollar value of the 30% tax.

$57 × 0.30 = $17.10

<h2>Step 3: Find the total price</h2>

Add $57 and $17.10 to determine the total price:

$57 + $17.10 = $74.10

Therefore, the total price is $74.10.

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3 years ago

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marishachu [46]

Answer:

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Step-by-step explanation:

We are given;

The quadratic equation, x² + 4x - 13 = -8

We are required to solve the equation using the completing square method.

To do this, we use the following steps;

Step 1: We make sure the coefficient of x² is one

x² + 4x - 13 = -8

Step 2: Combine the like terms (take the constant term to the other side)

x² + 4x - 13 = -8

x² + 4x = -8 + 13

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x² + 4x = 5

Step 3: We add the square of half the coefficient of x on both sides of the equation

Coefficient of x = 4

Half of coefficient of x = 2

Square of half the coefficient of x = 2² (4)

We get;

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Step 4: Put x and 2 under one square and the solve the other side of the equation.

We get

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Step 5: Get the square root on both sides of the equation;

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Therefore;

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Thus, x = 1 or -5

The solution of the equation is x = 1 or x = -5

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