Question

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Part 1
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
  
270
Part 2
​Now, let d be the number of days Claire traveled 90 miles. What equation can be used to find the number of days Claire​ traveled?
90dequals327
90dequals270
Your answer is correct.
57dequals327
57dequals270
Part 3
Solve for d.
dequals
  
3
Part 4
What was the total number of days that Claire​ traveled?
Claire drove for
  
enter your response here days in all.
​(Type a whole​ number.)

Answer 1

Step 1: Subtract the last day’s miles from the total to get miles driven on full 90-mile days.
327 − 57 = 270

Step 2: Let d = number of 90-mile days. Set up the equation:
90d = 270

Step 3: Solve for d:
d = 270 ÷ 90 = 3

Step 4: Add the last (57-mile) day:
Total days = 3 + 1 = 4

Answer: Claire traveled for 4 days in all.