Question

A baker sells bread for $6 and rolls for $2 each. The baker needs to sell $36 worth of baked goods by the end of the day. How many loaves of bread must the baker make if 15 rolls at sold?

Answer 1

Answer: 1

Step-by-step explanation:

Rolls: 15 at $2 ea = $30

Bread: x at $6 ea = $36 - $30

              6x = 6

                x = 1

Answer 2

Explanation:

Cost of 1 loaf of bread = $6

Cost of 1 roll = $2

The baker needs to sell both items and it should be worth $36.

To find the linear equation, Suppose, the baker sells “b” loaves of bread and “r” rolls.

Then the total cost of the sales has to be $36.

So, the linear equation will be:

6b + 2r = 36.......................(A)

Now, it is given that the baker sold 15 rolls and we need to know how many loaves he has to sell.

For that, replace the “r” in equation (A) with 15 as “r” represents number of rolls sold.

Then the new equation becomes:

6b + 2 × 15 = 36

or 6b = 36 − 15

or 6b = 15

Solving for “b”,

b = 15/6 = 2.5 loaves