Answer:
Subtraction property of equality
Step-by-step explanation:
The subtraction property of equality refers to balancing an equation by using the same mathematical operation on both sides.
So,
9*27 + 2*31 - 28 = n
We use PEMDAS.
Multiply from left to right.
243 + 2*31 - 28 = n
243 + 62 - 28 = n
Add or subtract from left to right.
305 - 28 = n
277 = n
The answer to your question is C)26
A:
Ratio of all students in the class to girls is...
15:8
b:
Ratio of boys to girls....
7:8
1. 1/4, 2/7, 3/8
2. 12/5
3. 3/4, 7/10, 7/12
4. 1/6, 1/2, 1/4
