Which expression can be used to convert 100 USD to Japanese Yen?

Solution:

An algebraic expression is a combination of terms by the operations such as addition, subtraction, multiplication, division, etc.

Assume that,

1 USD  =  X Japanese Yen

Therefore, 100 USD  = 100X Japanese Yen --------------------- (1)

Also let's assume,

1 Japanese Yen  =  Y USD

Therefore,  Y USD = 1 Japanese Yen

Hence, 1 USD = 1/Y  Japanese Yen ------------------------------ (2)

Using equations (1) and (2) we get,

100 USD = 100/Y  Japanese Yen

Thus, the expression that can be used to convert 100 USD to Japanese Yen is 100 USD = 100/Y Japanese Yen

Which expression can be used to convert 100 USD to Japanese Yen?

Summary:

The expression that can be used to convert 100 USD to Japanese Yen is 100 USD = 100/Y Japanese Yen