Download presentation

Presentation is loading. Please wait.

Published byDonna Adwell Modified over 2 years ago

1
**and $7.25 for refreshments. Find the total cost. MOVIES**

Example 2 Evaluate an expression in two variables The total cost of seeing a movie at a theater can be represented by the expression where a is the cost (in dollars) of admission and r is the cost (in dollars) of refreshments. Suppose you pay $7.50 for admission and $7.25 for refreshments. Find the total cost. MOVIES r a + SOLUTION Total cost r a + = Write expression. 7.25 7.50 + = Substitute 7.50 for a and 7.25 for r. 14.75 = Add. ANSWER The total cost is $14.75.

2
**Write the power in words and as a product.**

Example 3 Read and write powers Write the power in words and as a product. Power Words Product a. 71 seven to the first power 7 five to the second power, or five squared 5 • b. 52 2 1 3 c. one half to the third power, or one half cubed 2 1 • d. z5 z to the fifth power z •

3
**WHAT IF? In Example 2, suppose you go back to the theater **

Guided Practice for Examples 2 and 3 5. WHAT IF? In Example 2, suppose you go back to the theater with a friend to see an afternoon movie. You pay for both admissions. Your total cost (in dollars) can be represented by the expression 2a. If each admission costs $4.75, what is your total cost? ANSWER $9.50

4
**Write the power in words and as a product.**

Guided Practice for Examples 2 and 3 Write the power in words and as a product. 6. 95 ANSWER nine to the fifth power, 9 • 7. 28 ANSWER two to the eighth power, 2 •

5
**Write the power in words and as a product.**

Guided Practice for Examples 2 and 3 Write the power in words and as a product. 8. n4 ANSWER n to the fourth power, n •

Similar presentations

OK

Order of Operations Also known to as PEMDAS. EXAMPLE 1 Following Order of Operations Music You buy a used guitar for $50. You then pay $10 for each of.

Order of Operations Also known to as PEMDAS. EXAMPLE 1 Following Order of Operations Music You buy a used guitar for $50. You then pay $10 for each of.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on relations and functions for class 11th sample Ppt on natural and artificial satellites wiki Electronic paper display ppt online Ppt on road accidents videos Ppt on hydrostatic forces on submerged surfaces in static fluids Ppt on health and medicine class 10 Ppt on magnetic effect of electric current Ppt on online marketing trends Ppt on art and craft movement pottery Formal backgrounds for ppt on social media