Solving Systems of Equations by Substitution · Exercise 53
Stephanie left Riverside, California, driving her motorhome north on Interstate 15 towards Salt Lake City at a speed of 56 miles per hour. Half an hour later, Tina left Riverside in her car on the same route as Stephanie, driving 70 miles per hour. Solve the system .
ⓐ for to find out how long it will take Tina to catch up to Stephanie.
ⓑ what is the value of , the number of hours Stephanie will have driven before Tina catches up to her?
OpenStax, Elementary Algebra 2e · §5.2 Solving Systems of Equations by Substitution · Exercise 53
No hints for this one.
Check your full solution
Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.
Your first check today doesn't need an account.
Your photos and PDFs are read once and not stored — only the transcription is kept.