Could we have written the initial expression as (4x + 75y) + (-6x - 10y)? Class 7
easy
R
RBSEGuide
Expert Answer
Could we have written the initial expression as (4x + 75y) + (-6x - 10y)? Class 7
Question 1.
Could we have written the initial expression as (4x + 75y) + (-6x - 10y)? Class 7
Solution:
Yes.
Question 2.
What do each of the expressions mean? Class 7
Solution:
Expression 7p - 3q means, Charu has done 7 questions correctly and 3 questions incorrectly. Expression 8p - 4q means, Charu has done 8 questions correctly and 4 questions incorrectly. Expression 6p - 2q means, Charu has done 6 questions correctly and 2 questions incorrectly.
Question 3.
Give some possible scores for Krishita in the three rounds so that they add up to give 23p - 7q. Class 7
Solution:
Three possible scores are 10p - 2q, 8p - 4q and 5p - q to give 23p - 7q. (Answer is not unique).