1. What is the opposite of -2? 2
2. When we add opposites together they will always equal = ? 0
This is also known as what ?
additive inverse
Adding with integers with SAME signs.
-8 + -3 = -11
-12 + -15 = -27
-3 + -9 + -25 = -37
The answer to your question is A
A plane flew 193 km in 12 minutes at constant speed. what was the speed of the airplane in km per hour? "965 km'
Answer:
40
Step-by-step explanation:
Let n represent the integer. Then the increase can be written as ...
n + (-12) = 28
We can add 12 to both sides of this equation:
n + (-12) + (+12) = 28 +12
n + 0 = 40 . . . . . . -12 and 12 total to zero; 28 and 12 total to 40.
n = 40
The integer is 40.
