The price of a stereo at Mary's is $220 less than twice the price at Cal's. The difference in the price between both stores is $175. How much does the system cost in both stores?

Expert Answers info

Eric Bizzell eNotes educator | Certified Educator

briefcaseTeacher (K-12)


calendarEducator since 2011

write3,067 answers

starTop subjects are Math, Science, and Business

Let us assign variables: let m be the price of the system at Mary's and let c be the price of the system at Cal's.

We are told that the price at Mary's, m, is $220 less than twice the price at Cal's. Translating into algebraic notation we get m=2c-220. (Twice indicates to multiply by 2, while in context less suggests we subtract.)

Also we are given that the difference (subtraction) between the two prices is $175 or m-c=175.

We have a system of two linear equations in two unknowns. This system...

(The entire section contains 254 words.)

Unlock This Answer Now




check Approved by eNotes Editorial

Ask a Question