Question

At a shop for tourists, the price of one souvenir
is a dollars. Each additional souvenir purchased
after the first is discounted by 40 percent. If
James buys n souvenirs, where n> 1, which of
the following represents the total cost of the
souvenirs?
A) a + (n-1)(0.4a)
B) a (n-1)(0.6a)
C) a + n(0.6a)
D) 0.6an

Answer 1

The expression to represent the total cost of souvenirs is a + (n-1)0.6a. Thus, option B is correct.

What is a mathematical expression?

The mathematical expression is given as the description of the equation with the development of the relationships between the variables.

The cost of the first souvenir was given as a.

There was a discount on another souvenir of 40%, there they must be 60% of a. Thus, the cost will be 0.6 a.

The total number of souvenir bought are n.

When a shopper purchases n souvenirs, one will be at the cost of the first souvenir, and the remaining n - 1 will be at the cost of a second souvenir.

As a result, the expression that best represents this is

Cost = a + (n-1)0.6a

Thus, option B is correct.

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