Question

One us dollar is currently worth 84.1 japanese yen (¥). if you exchange ¥4,205 for us dollars, how much will you have?

Answer 1

1/ 84.1 = x / 4205.....1 dollar to 84.1 yen = x dollars to 4205 yen
cross multiply because this is a proportion
(84.1)(x) = (1)(4205)
84.1x = 4205
x = 4205 / 84.1
x = 50......so 4205 yen = $ 50 <===

Answer 2

In exchange of 4,205 jaenese yen , we get 50 US dollar.

Explanation:

Given: one US dollar cost is currently worth 84.1 Japanese yen (¥).

that is $1 =¥ 84.1

We want to exchange ¥4,205 for us dollars.

We have to find the amount in US dollar it will make.

Unitary method is a method in which we find the value of a single unit and then multiply it with the desired quantity.

¥ 84.1 makes $1

then ¥ 1 makes $
`(1)/(84.1)`

We want to exchange ¥4,205 for us dollars.

that is ¥ 4,205 makes $
`(1)/(84.1)* 4205`

On solving, we get,

Thus, ¥ 4,205 makes $50

Thus, in exchange of 4,205 jaenese yen , we get 50 US dollar.