Question

What are two ways to find the total cost of a pair of shoes for $57 with a sales tax of 2%?

Answer 1

Here is one of the ways, first you are going to convert the 2% into a fraction.
2% = 0.02
Next we are going to multiply 0.02 * 57 = 1.14
Now we are going to add 1.14 to 57 to find the total cost with including the tax.
1.14 + 57 = 58.14
= $ 58.14

Answer 2

Answer:

The total cost is $58.14.

Step-by-step explanation:

Given : A pair of shoes for $57 with a sales tax of 2%.

To find : What are two ways to find the total cost ?

Solution :

Cost price CP=$57

Sales tax S=2%

One way :

The total cost is given by,

$C=CP+2\%\text{ of } CP$

$C=57+\frac{2}{100}\times 57$

$C=57+1.14$

$C=58.14$

The total cost is $58.14.

Another way :

Using selling price formula,

$SP=\frac{100+S\%}{100}\times CP$

$SP=\frac{100+2}{100}\times 57$

$SP=1.02\times 57$

$SP=58.14$

The total cost is $58.14.