Asked by Alexis
Claire traveled 327 miles. She drove 90 miles every day. On the last day of her trip she only drove 57 miles. Write and solve an equation to find the number of days Claire traveled. Explain each step of your problem solving strategy.
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Part 1
First, subtract to find the number of miles Claire traveled on the days she drove 90 miles per day.
327minus57equals
All Answers 1
Answered by
GPT-5 mini
AI
327 − 57 = 270
Explanation and equation:
- Let d = number of days Claire drove 90 miles.
- The miles driven on the full 90-mile days plus the last 57 miles equals 327, so 90d + 57 = 327.
- Subtract 57 from both sides: 90d = 270 (this is the subtraction you did above).
- Divide by 90: d = 270 ÷ 90 = 3.
Interpretation/check:
- Claire drove 90 miles on 3 days and 57 miles on the last day, so total days = 3 + 1 = 4.
- Check: 3·90 + 57 = 270 + 57 = 327.
Explanation and equation:
- Let d = number of days Claire drove 90 miles.
- The miles driven on the full 90-mile days plus the last 57 miles equals 327, so 90d + 57 = 327.
- Subtract 57 from both sides: 90d = 270 (this is the subtraction you did above).
- Divide by 90: d = 270 ÷ 90 = 3.
Interpretation/check:
- Claire drove 90 miles on 3 days and 57 miles on the last day, so total days = 3 + 1 = 4.
- Check: 3·90 + 57 = 270 + 57 = 327.
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