224 is 25% of what number?
A. 224 • 0.25 = w; 560
B. 224 = 0.25 • w; 896
C. 224 • 0.25 = w; 56
D. 224 = 0.25 • w; 90
B. 224 = 0.25 • w; 896
To find out what number 224 is 25% of, we can set up a proportion. Let's assume the number we're looking for is represented by "w".
The proportion can be written as:
224 is to w as 25 is to 100
This can be expressed mathematically as:
224/w = 25/100
To solve for "w", we can cross-multiply and then divide:
224 * 100 = 25 * w
22400 = 25w
w = 22400/25
w = 896
Therefore, 224 is 25% of 896.
The correct answer is B. 224 = 0.25 • w; 896.