This is known as the "change of base" formula. The ratio is equivalent to the log of the numerator argument to the base of the denominator argument.
Answer:
Perform the actual multiplication problem either by hand or with a calculator. In this example, students would multiply 21 times 31 to get 651. Subtract the smaller number from the larger one to check for reasonableness. In this example, you would subtract 600 from 651 to get 51.
Step-by-step explanation:
<span>In the question "Jane Marko buys a car for $43,900.00. In three years, the car depreciates 48% in value. How much is the car worth in three years", the correct answer is $22,828.00 (option A).
The cost of the car = $43,900.00
Depreciation in value in three years = 48% of $43,900.00 = 0.48 x 43,900.00 = $21,072.00
Value of the car after three years = $43,900 - $21,072 = $22,828.00</span>
