mathematics
caira12:

The sum of two numbers is 47. The greater number is 9 more than the smaller number. Which equation can be used to solve for the smaller number? (5 points) Select one: a. x + (x + 9) = 47 b. x − (x + 9) = 47 c. x(x + 9) = 47 d. x(x − 9) = 47

8 months ago
Mercury:

if we let "n" be "the smaller number" how can we write "the greater number is 9 more than the smaller number"?

8 months ago
Mercury:

"9 more" implies we are adding 9 to the smaller number so greater number is "n + 9"

8 months ago
Mercury:

"sum of two numbers is 47." therefore smaller number + greater number = 49 therefore n + (n+9) = 49

8 months ago
Mercury:

now, looking at the answer choices, they use the variable x instead of n (whoops) so simply change the variable from n to x

8 months ago
caira12:

ohhh ok thank you

8 months ago
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