<u><em>Answer:</em></u> both numbers are negative negative number is greater than the positive number
<u><em>Explanation:</em></u> <u>In order to add two rational numbers and get a negative value, one of two scenarios should occur:</u> <u>1- both numbers are negative.</u> In this case, the answer would definitely be negative as the two numbers are originally negative <u>Examples:</u> -9 + -2 = -9 - 2 = -11
<u>2- negative number is greater than the positive number</u> In this case, the negative sign would dominate and the result would be negative <u>Examples:</u> -9 + 3 = -6
16 cm - 2.5 cm = 13.5 cm, which is 1/4 of the diameter of the large gear. Take 13.5 cm * 4, and you have the diameter of the large gear, which is 54 cm.