if the cost of a tape is $10 and the cost of a cd is $12 then write the objective function for the cost of cds .

If the cost of a tape is $10 and the cost of a CD is $12, then write the objective function for the cost of x tapes and y CDs . => C = 12 x + 10 y or C = 22 + ..

If the cost of a tape is $11 and the cost of a CD is $14, then write the objective function for the cost of x tapes and y CDs . => C = 11 x + 14 y or C = 154 xy or C = 14 x + 11 y or C = 25 + x + y o..

The cost of 3 CDs is $12. Find the unit rate. => $7 per CD or $5 per CD or $6 per CD or $4 per CD..

5 CDs cost $20.50. Write an equivalent fraction for the decimal. => 20 2 5 or 20 3 5 or 50 1 5 or 20 1 2..

The cost of a computer decreased from $800 to $744. What is the percent of decrease in the cost of the computer? => 12% or 9% or 10% or 7%..

Jeff needs to buy 30 CDs which cost $10 each. The total amount of 30 CDs is 30 × 10. Use commutative property to identify the equivalent expression. => 10 ÷ 30 or 40 or -20 or 10 × 30..

Rosy bought a few cassettes that costed her $10 each and a few CDs that were priced at $5 each. She spent a total of $40 while buying the CDs and cassettes. Which of the following best describes the data? => 10 p + 5 q < 40 or 10 p + 5 ..

The cost of 10 boxes of cookies is $123.20. What is the cost of each box of cookies? => $15.32 or $14.32 or $16.32 or $12.32..

Tommy bought some soaps and shampoo bottles for $63. Cost of one soap is $3 and cost of one shampoo bottle is $12. Write an equation that models the number of soaps and shampoos Tommy bought. => 3 x - 12 y = 63 or -3 x + 12 y = 63 or 3 x +..

Nathan and his friends went for a movie with their families. The cost of adult ticket was $20 each and the cost of child ticket was $10 each. Find the money they spent on tickets if there were 12 children and 10 adults. => $320 or $280 or $350 or $3..