Question

Sales tax on a shirt is 0.07 times the cost of the shirt. The sales tax for a shirt is $1.26. Which equation could you use to find the cost, c, of the shirt before sales tax? A. 0.07 · c = 1.26 B. 0.07 · 1.26 = c C. 0.07 ÷ 1.26 = c D. 0.07 ÷ c = 1.26

Answer 1

Answer: A. 0.07 · c = 1.26

Explanation:

Sales tax (0.07) x cost (c) = price (1.26)

Answer 2

Option A: 0.07c = 1.26 is the correct answer

Explanation:

Given that the price of shirt is denoted by c.

Given that the sales tax is 0.07 times of the cost of shirt.

Mathematically it can be written as:

`Sales\ tax=0.07c`

Now it is also given in the statement that the sales tax is $1.26

Putting this value in the above equation

`1.26 = 0.07c`

As we have to find the cost, dividing both sides by 0.07

`(1.26)/(0.07) = (0.07x)/(0.07)\\c = (1.26)/(0.07)`

Hence, we saw that the intermediate equation was: 1.26 = 0.07c

So,

Option A: 0.07c = 1.26 is the correct answer