Question

I need help like right now its do tomorrow 1st period and can you explain it to me please and thanks

Answer 1

The answer is C, -1 1/4

Explanation:

This is EASY! Do not sweat it!

If the answer is 5 1/2 and one of the numbers is 6 3/4

(5 1/2= x + 6 3/4)

You need to add a number to the given, (6 3/4) to get the given sum, (5 1/2).

In this example, the only number that can be added to 6 3/4 to get a sum of 5 1/2 is -1 1/4. This is clear because 6 3/4 is GREATER than 5 1/2, so you would need a negative number added to 6 3/4 to bring it down to your sum.

6 3/4 - 1 1/4 = 5 2/4 OR 5 1/2

Answer 2

6 3/4 +x= 5 1/2

subtract 6 3/4 from each side

x = 5 1/2 - 6 3/4

get a common denominator

x = 5 2/4 - 6 3/4

take larger - smaller and take the sign of the larger

x = -(6 3/4 - 5 2/4)

x = - 1 1/4

Choice C