When you add a positive number and a negative number, how can you tell whether the sum will be positive or negative? (7th grade)

Howdy! My name is Christian and I’ll try and help you with this question!

Date: 9/29/20 Time:  9:11 am CST

When the posiotive varibale is greater then the negative, the answer will be positive, when the negative variable is greater than the positive, the answer will be negative.

Explanation:

When adding a positive and a negative it could be either positve or negative ouput. If you had -50 and you added +60 the ouput is 10.

But if you had +50 and you added -60 the output would be -10.

Hope this helps you with your question!

Sincerely,

Christian

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)