a student writes 5y.3 to model the relationship the sum of 5y and 3.explain the error
The sum of 5y and 3 is written 5y +3
The error in the expression "5y.3" is that the dot (.) should be replaced with a plus (+) sign.
To model the relationship of the sum of 5y and 3, the correct expression should be "5y + 3."
The dot (.) is commonly used as a multiplication symbol in mathematical expressions. However, when expressing the sum of two terms, the plus sign (+) is used to indicate addition.
So, the corrected expression would be: 5y + 3, where 5y represents 5 times y and 3 represents the number 3.