Chapter 3 Section 6 Applications.

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Presentation transcript:

Chapter 3 Section 6 Applications

Vocabulary Consecutive Integers: Integers that are consecutive. Numbers that follow right after another. 5 and 6 are consecutive integers. If k represents an integer, the next consecutive integer is k + 1

Problem 1 The three sides of a triangle are consecutive integers. The perimeter is 72 inches. Find the measure of each side of the triangle.

Vocabulary 2 Consecutive odd integers. If p represents an odd integer, what is the next odd integer?

Problem 2 Page 218: Example 2: The length and width of a rectangle are consecutive odd integers and the perimeter is 168 centimeters. Find the length and width of the rectangle.

Mixture Gina cracks open a piggy bank and finds $4.50 (450 cents), all in nickels and dimes There are 15 more dimes than nickels. How many nickels does Gina have?

Solution Let n = number of nickels. Since there are 15 more dimes than nickels Let n + 15 = number of dimes Total value is 450 cents.

Mixture ??

Interest - $$ Interest = Principal • rate • time I = Prt

Interest - $$ Interest = Principal • rate • time I = Prt Use the formula to find the amount of interest on an investment of $4000 at 4% for 3 years..

Interest If Trinity has $24 300 and she invest the entire amount at 2% interest per year, what is the amount that she will have after 3 years?

Summary Read the problem. Define the unknown as a variable. Write an equation Solve the equation Answer the question. Check – Does the answer seem reasonable?

Problems Mixture Consecutive Integers Interest