Solve for the base. Round to the nearest cent.
-Part: $8.44 Rate of decrease: 10%

Question

Quizplus · Accepted Answer

To find the base (original amount), we use the formula:
Part = Base - (Rate of decrease/100 x Base)
Plugging in the given values, we get:
8.44 = Base - (10/100 x Base)
Multiplying 10/100 by Base, we get 0.1 Base. So, the equation becomes:
8.44 = Base - 0.1 Base
Combining like terms, we get:
8.44 = 0.9 Base
Dividing both sides by 0.9, we get:
Base = 8.44/0.9 ≈ 9.38
Rounding to the nearest cent, we get Base ≈ $9.38, which is answer choice D.

Solve for the Base