Algebra 3.4. Expressions and Equations Algebra 3.4 WordSymbol A numbern And+ Sum+ Times. or ( )( ) Twice2( ) Difference- Fewer than- Less than- Is less.

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Presentation transcript:

Algebra 3.4

Expressions and Equations

Algebra 3.4 WordSymbol A numbern And+ Sum+ Times. or ( )( ) Twice2( ) Difference- Fewer than- Less than- Is less than< More than+ Is more than> Greater than+ quantity( ) Product. Or ( ) ( ` )

5 times the quantity 3 less than a number. ½ the sum of a number and 4.

4 times the quantity 3 greater than a number. 14 less than the product of 3 and a number.

Jason’s weekly salary is $35 less than twice David’s weekly salary. Let D= David’s weekly salary in dollars. Write an expression using D, for Jason’s salary. This year Todd sold five fewer houses than twice as many as he sold last year. Let n= the number of houses he sold last year. Write an expression for the number of houses Todd sold this year.

Equations The number of girls in the band is 6 more than twice the number of boys in the band. There are 88 girls in the band. How many boys are in the band? Kara has driven 75 miles. She averages 55 mi/hr. How many more hours must Kara drive to travel a total of 350 miles?