needing answer to this question please

Question

Yesterday, a mail-order firm's sales of sleeping bags totaled $3,840. A child's sleeping bag sold for $40, while the adult sleeping bag sold for $100. If 60 sleeping bags were sold altogether, how many of the child's sleeping bags were sold?

Answer 1

Step 1. Identify the unknown items. They are the number of child and adult sleeping bags sold, respectively.

 

Step 2. Assign variables to the unknown quantities. We can let x = the number of child sleeping bags sold and let y = the number of adult sleeping bags sold.

 

Step 3. Look for clues within the problem to set up an algebraic equation.

 

We know that x + y = 60

 

and

 

40x + 100x = 3840

 

Step 4. Solve the system of equations by whichever method you choose (e.g., Elimination Method, Substitution Method...)

 

In this case, it would be easier to solve by the Substitution Method. You can solve the first equation for either x or y and then plug that into the second equation to solve for the other variable.

 

You should be able to handle it from here, Shania.