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If 15% of a number is 45, what is the number?
If 15% of a number is 45, what is the number?
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Practice Questions
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Q1
If 15% of a number is 45, what is the number?
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Let the number be x. Then, 0.15x = 45. Therefore, x = 45/0.15 = 300.
Questions & Step-by-step Solutions
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Q
Q: If 15% of a number is 45, what is the number?
Solution:
Let the number be x. Then, 0.15x = 45. Therefore, x = 45/0.15 = 300.
Steps: 7
Show Steps
Step 1: Understand that 15% means 15 out of 100, or 0.15 in decimal form.
Step 2: Let the unknown number be represented by 'x'.
Step 3: Write the equation for 15% of 'x': 0.15 * x = 45.
Step 4: To find 'x', we need to isolate it. We can do this by dividing both sides of the equation by 0.15.
Step 5: Perform the division: x = 45 / 0.15.
Step 6: Calculate the result: 45 divided by 0.15 equals 300.
Step 7: Therefore, the number is 300.
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