Presentation is loading. Please wait.

Presentation is loading. Please wait.

EXAMPLE 1 Solving an Equation Involving Decimals A colony of coral is 0.17 meter high and is growing at a rate of 0.025 meter per year. Another colony.

Similar presentations


Presentation on theme: "EXAMPLE 1 Solving an Equation Involving Decimals A colony of coral is 0.17 meter high and is growing at a rate of 0.025 meter per year. Another colony."— Presentation transcript:

1 EXAMPLE 1 Solving an Equation Involving Decimals A colony of coral is 0.17 meter high and is growing at a rate of meter per year. Another colony is 0.11 meter high and is growing at a rate of meter per year. In how many years will the colonies be the same height? Environment

2 EXAMPLE 1 Solving an Equation Involving Decimals SOLUTION First write a verbal model. Let n represent the number of years. =

3 EXAMPLE 1 Solving an Equation Involving Decimals n = n Write algebraic model = n Subtract 0.025n from each side = 0.016n Subtract 0.11 from each side. Divide each side by = n Simplify x = ANSWER The colonies will be the same height in 3.75 years.

4 GUIDED PRACTICE for Example 1 You and a friend are buying snowboarding gear. You buy a pair of goggles that costs $39.95 and 4 tubes of wax. Your friend buys a helmet that costs $54.95 and 2 tubes of wax. You each spend the same amount. Write and solve an equation to find the price of one tube of wax. Snowboarding 1.

5 GUIDED PRACTICE for Example 1 SOLUTION Let x represent the price of one tube of wax x = x Write algebraic model x = Subtract 2x from each side. 2x = Subtract from each side. Divide each side by 2 x = 7.50 Simplify. 2x2x = ANSWER The price of one tube of wax is $7.50.


Download ppt "EXAMPLE 1 Solving an Equation Involving Decimals A colony of coral is 0.17 meter high and is growing at a rate of 0.025 meter per year. Another colony."

Similar presentations


Ads by Google