[A] = 5
Step-by-step explanation:
4 - 2 = (2)
8 - 5 = (3)
2 + 3 = (5)
Answer:
The ordered pair is (3, 2).
Step-by-step explanation:
y = -x + 5
2x + y = 8
Substitute y = -x + 5 in the second equation:
2x + (-x + 5) = 8
x + 5 = 8
x = 3.
Now substitute x = 3 into the first equation;
y = -3 + 5
y = 2.
Let's say you had the ratio 14:21
The GCF of the two values (14 and 21) is 7
14 = 7*2
21 = 7*3
We can divide both parts of the ratio by the GCF 7 to get
14/7 = 2
21/7 = 3
Meaning the original ratio 14:21 fully reduces to 2:3
So in short, we use the GCF to help fully reduce any ratio.
This also applies to fractions as well. We could have something like 9/33 fully reduce to 3/11 after dividing both parts (9 and 33) by the GCF 3.