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Write and solve an equation

BIRD MIGRATION. A flock of cranes migrates from Canada to Texas. The cranes take 14 days ( 336 hours) to travel 2500 miles. The cranes fly at an average speed of 25 miles per hour. How many hours of the migration are the cranes not flying?. EXAMPLE 5. Write and solve an equation.

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Write and solve an equation

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  1. BIRD MIGRATION A flock of cranes migrates from Canada to Texas. The cranes take 14 days (336 hours) to travel 2500 miles. The cranes fly at an average speed of 25 miles per hour. How many hours of the migration are the cranes not flying? EXAMPLE 5 Write and solve an equation

  2. SOLUTION Let x be the amount of time the cranes are not flying. Then 336– xis the amount of time the cranes are flying. = 25 2500 (336 – x) EXAMPLE 5 Write and solve an equation

  3. ANSWER The cranes were not flying for 236 hours of the migration. EXAMPLE 5 Write and solve an equation 2500 =25(336 – x) Write equation. 2500 = 8400 – 25x Distributive property Subtract 8400 from each side. –5900 =–25x 236 = x Divide each side by –25.

  4. 7. WHAT IF? Suppose the cranes take 12 days (288 hours) to travel the 2500 miles. How many hours of this migration are the cranes not flying? ANSWER 188 h EXAMPLE 5 for Example 5 Write and solve an equation GUIDED PRACTICE

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