Suggested Answer:B🗳️
This uses two algebraic equations to solve for the age. Jerry (J) and his grandfather (G) have a sum of ages of 110 years. Therefore, J + G = 110. Jerry was one- third as young as his grandfather 15 years ago. Therefore, J 15 = 1/3 (G 15). Solve the first equation for J: J = 110-G. Now substitute this value of J into the second equation: 110 G 15 = 1/3 (G 15). Solve for G: 95 G = 1/3 G 5; 100 = 4/3 G; G = 75.
What does it mean when you type "J 15 = 1/3 (G 15)"? This is confusing. What is the operation between J and 15? between G and 15? My guess is minus? Sorry, but the solution is confusing without the minus sign.
upvoted 1 times
...
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
JoanTana
2 years, 10 months ago