Answer:
a = 12 years
Step-by-step explanation:
Mark is 6 years older than his brother Sam. Now, we are asked to represent Sam’s age by a. This means that if Sam is a years old, Mark is (a + 6) years old.
The sum of their ages is 30, this means that when we add their ages together, we get the sum of thirty.
Mathematically this means a + a + 6 = 30
2a + 6 = 30
This is the equation needed to get a. To get a , we proceed to solve the equation to completion.
2a = 30 - 6
2a = 24
a = 24/2
a = 12
W= 34, thats what the answer is.
The answer to the first one is 9/4
The answer to the second one is 20/9
Hope this is right
The answer is C. 8
4/2 = 2
2+6 = 8
Let me know if you have any questions!
It's a kite or a rhombus.
