Juan sold a boat that he bought 5 years ago. He sold it for 70%less than he originally paid for it. If the original cost is b , write an expression that shows how much he sold the boat for
b - .7b = Sale price
To find the expression that shows how much Juan sold the boat for, we can start by finding the amount he sold it for as a percentage of the original cost.
Since Juan sold the boat for 70% less than what he originally paid, the amount he sold it for can be calculated as:
Amount sold = Original cost - (70% of Original cost)
To express this as an equation using the variable "b" to represent the original cost, we need to convert 70% to its decimal form, which is 0.70. Thus, the expression becomes:
Amount sold = b - 0.70b
Simplifying it further, we can combine like terms:
Amount sold = (1 - 0.70)b
And the final expression representing how much Juan sold the boat for is:
Amount sold = 0.30b