Barbara Phillips

This page lists questions and answers that were posted by visitors named Barbara Phillips.

Questions

The following questions were asked by visitors named Barbara Phillips.

Postcard stamps are 20ยข each, while letter stamps are 33e each. If you have 50 stamps worth $12.60, how many of each type do you have? How to set this as a matrix equation?
4 years ago

Answers

The following answers were posted by visitors named Barbara Phillips.

How do you set this as a matrix equation?
4 years ago