Download presentation

Presentation is loading. Please wait.

Published byRobert Harmon Modified over 8 years ago

1
EXAMPLE 1 Following Order of Operations Music You buy a used guitar for $50. You then pay $10 for each of five guitar lessons. The total cost can be found by evaluating the expression 50 + 10 5. Is the total cost $100 or $300 ?

2
= 50 + 50 EXAMPLE 1 To find the guitar costs described, evaluate 50 + 10 5. 50 + 10 5 First multiply 10 and 5. = 100 Then add 50 and 50. ANSWER The total cost is $100. Following Order of Operations

3
EXAMPLE 2 Evaluating a Variable Expression Substitute 25 for x and 2 for y. Evaluate the power. Multiply 8 and 3. = 1 Subtract 24 from 25. x 3y 3 – = 25 3(2 3 ) – = 25 3(8) – = 25 24 – Evaluate x 3y 3 when x = 25 and y = 2. –

4
GUIDED PRACTICE for Examples 1 and 2 Evaluate the expression. 1. 5 + 6 5 35 ANSWER 2. 20 4 2 2 – 12 ANSWER 3. 10 3 + 3 3 57 ANSWER

5
GUIDED PRACTICE 4. Evaluate a + 4b 2 when a = 6 and b = 5. 106 ANSWER for Examples 1 and 2

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google