Back to Solve real-world and mathematical problems leading to two linear equations in two variables — Problem 4 · Task Set 40

8.EE.C.8.c Tutor Intake -- Real-World Systems of Equations

This short check helps your tutor see where to start. Work each problem on
your own, without a calculator. If you are not sure, give your best try —
every answer helps your tutor plan your first few sessions.

Grade 8·8 problems·~9 min·Common Core Math - Grade 8·standard·8-ee-c-8c

Work through problems with immediate feedback

Procedures

Two friends save money: Aisha starts with $40 and saves $15 per
week ( $y = 40 + 15w$ ); Ben starts with $100 and saves $5 per
week ( $y = 100 + 5w$ ). Set the two expressions for $y$ equal and
solve for $w$ , the number of weeks until they have the same
amount saved.