If 0.25N = 15, what is N?

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Study for the 8th Grade Mathematics Test. Prepare with multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

If 0.25N = 15, what is N?

Explanation:
Solving this uses undoing multiplication with a number by using inverse operations. Since 0.25N means N times 0.25, you want to undo that by multiplying by the reciprocal of 0.25, which is 4. So N = 15 × 4 = 60. Another way is to see 0.25N as N/4; then N/4 = 15, and multiplying both sides by 4 gives N = 60. Quick check: 0.25 × 60 = 15, so that works. The value that makes the equation true is 60.

Solving this uses undoing multiplication with a number by using inverse operations. Since 0.25N means N times 0.25, you want to undo that by multiplying by the reciprocal of 0.25, which is 4. So N = 15 × 4 = 60. Another way is to see 0.25N as N/4; then N/4 = 15, and multiplying both sides by 4 gives N = 60. Quick check: 0.25 × 60 = 15, so that works. The value that makes the equation true is 60.

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