IDNStudy.com, ang iyong mapagkukunan para sa mga sagot ng eksperto. Makakuha ng impormasyon mula sa aming mga eksperto, na nagbibigay ng maaasahang sagot sa lahat ng iyong mga tanong.
A number decreased by 15. Let y be the number.
∴ The mathematical expression is y - 15.
Note: let y be the represents of the unknown number (you can use any numbers to represent unknown numbers for algebra).
The algebraic expression is that algebra is any variables, operations, constant and no equal sign.
The Mathematical phrase "a number decreased by 15" translated to an algebraic expression is y - 15. The "y" represents the number, the "decreased by" means that you have to subtract fifteen from a number y.
#CarryOnLearning