Download presentation

Presentation is loading. Please wait.

Published byCassandra Goss Modified over 2 years ago

1
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 is 0.11 meter high and is growing at a rate of 0.041 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 0.17 + 0.025n = 0.11 + 0.041n Write algebraic model. 0.17 = 0.11 + 0.016n Subtract 0.025n from each side. 0.06 = 0.016n Subtract 0.11 from each side. Divide each side by 0.016 3.75 = n Simplify. 0.06 0.016 0.016x 0.016 = 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. 1. 39.95 + 4x = 54.95 + 2x Write algebraic model. 39.95 + 2x = 54.95 Subtract 2x from each side. 2x = 15.00 Subtract 39.95 from each side. Divide each side by 2 x = 7.50 Simplify. 2x2x 2 15.00 2 = ANSWER The price of one tube of wax is $7.50.

Similar presentations

OK

EXAMPLE 4 Using a Verbal Model You pay $20 for a youth center membership. Drum lessons at the center cost $8 each for members and $12 each for nonmembers.

EXAMPLE 4 Using a Verbal Model You pay $20 for a youth center membership. Drum lessons at the center cost $8 each for members and $12 each for nonmembers.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on anti corruption movements Download ppt on motion for class 9th Ppt on wireless network architecture Opening ppt on mac Ppt on metallic and non metallic minerals Ppt on non biodegradable waste materials Ppt on obesity management in primary Ppt on earthquake resistant building Download ppt on latest technology in computer science Ppt on power system stability course