Question

Q11.Sara spends Sx on pens which cost $2.50 each
She also spends $(x - 14.50) on pencils which cost $0.50 each.
The total of the number of pens and the number of pencils is 19.
Write down and solve an equation in x.​

Answer 1

Answer:

If she spent $x on pens at $2.50 each, then she bought x/2.50 pens.

And similarly she bought (x - 14.50) / 0.50 pencils.