Using Equations to solve problems

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Presentation transcript:

Using Equations to solve problems Chapter 2 Section 2.4

objective Students will use the five step plan to solve word problems

Plan for solving word problems Read the problem carefully Choose a variable Reread the problem Write an equation Solve the problem Check your result

The sum of 38 and twice a number is 124. Find the number. example The sum of 38 and twice a number is 124. Find the number.

example Lynne took a taxicab from her office to the airport. She had to pay a flat fee of $2.05 plus $.90 per mile. The total cost was $5.65. How many miles was the taxi trip?

example The perimeter of a trapezoid is 90 cm. The parallel bases are 24 cm and 38 cm long. The lengths of the other two sides are consecutive odd integers. What are the lengths of these other two sides?

example Burt’s Burger Barn sold 495 hamburgers today. The number sold with cheese was half the number sold without cheese. How many of each kind were sold?

questions

assignment Worksheet