6. Carolyn has 9 quarters, 4 dimes, 7 nickels, and 2 pennies. Write and evaluate the expression to determine how much money she has. 7. Mr. Martinez orders 250 key chains printed with his and 500 pencils printed with their Web athletic team’s logo address. If represents the cost of each key chain and represents the cost of each pencil, write an expression that k p represents the cost of the order. 8. Jocelyn babysat for 25 hours and worked at the grocery store for 15 hours in a week. Let be the amount she earns per hour babysitting and be the amount she earns per hour at the grocery b g store. Write an algebraic expression that represents the total amount she earned. If Jocelyn earns $10 an hour babysitting and $8.25 an hour working at the grocery store, find the total amount she earned that week. 9. A certain smartphone family plan costs $55 per month plus additional usage costs. It costs $2 per each extra megabyte used. Let represent the number of megabytes of data used above the plan. Interpret the following expressions: x 2x 2x + 55 Algebra 1 Section 1.5 Notes: Equations Warm-up Use the distributive property to rewrite the expression without parentheses. 1.) 8(x + 5) 2.) 4(y 7) 3.) (x 4)(2) – – 4.) 1) 5.) (m 7)( 6.) + 3) –6(r – – –3) –12(n 7.) (x)(x + 3) 8.) (–a)(a + 3) 9.) (2x + 1)(5x) Open Sentence: a mathematical statement with one or more . Equation: a mathematical sentence that contains an . Solving an open sentence: Finding a for the that results in a true sentence or an that results in a true statement when substitute into the equation.
6. Carolyn has 9 quarters, 4 dimes, 7 nickels, and 2 pennies. Write and evaluate the expression to determine how much money she has. 7. Mr. Martinez orders 250 key chains printed with his athletic team’s logo and 500 pencils printed with their Web address. If k represents the cost of each key chain and p represents the cost of each pencil, write an expression that represents the cost of the order. 8. Jocelyn babysat for 25 hours and worked at the grocery store for 15 hours in a week. Let b be the amount she earns per hour babysitting and g be the amount she earns per hour at the grocery store. Write an algebraic expression that represents the total amount she earned. If Jocelyn earns $10 an hour babysitting and $8.25 an hour working at the grocery store, find the total amount she earned that week. 9. A certain smartphone family plan costs $55 per month plus additional usage costs. It costs $2 per each extra megabyte used. Let x represent the number of megabytes of data used above the plan. Interpret the following expressions: 2x 2x + 55 Algebra 1 Section 1.5 Notes: Equations Warm-up Use the distributive property to rewrite the expression without parentheses. 1.) 8(x + 5) 2.) 4(y – 7) 3.) (x – 4)(2) 4.) –6(r – 1) 5.) (m – 7)( –3) 6.) –12(n + 3) 7.) (x)(x + 3) 8.) (–a)(a + 3) 9.) (2x + 1)(5x) Open Sentence: a mathematical statement with one or more . Equation: a mathematical sentence that contains an . Solving an open sentence: Finding a for the that results in a true sentence or an that results in a true statement when substitute into the equation.
Student%20Workbook%202015.docx