Answer: Alvin = 42 yrs , Elga = 21 yrs
Step-by-step explanation:
Let Elga's age be x , and Alvin's age be y ,since Alvin is two times Elga's age , then
Alvin's age = 2x , that is
y = 2x ............... equation 1
The sum of their ages is 63 implies
x + y = 63 .............. equation 2
Solving the resulting linear equations by substitution method.
Substitute equation 1 into equation 2 , we have
x + 2x = 63
3x = 63
x = 63/3
x = 21
Therefore : Elga is 21 years old , then Alvin will be 21 x 2, which will be 42
36/12 = 24 / (6x-4)
3(6x-4) = 24
18x - 12 = 24
18x = 36
x = 2
Answer:
<h2><u>
Nature</u></h2>
Step-by-step explanation:
acellus
The Vertical angle for <HKJ is <OKL or #12
Answer:
The slope of the line with points A(-2, -7) and B(3,5) is m = (12/5).
Step-by-step explanation:
The two pints are given as A(-2, -7) and B(3,5)
Slope of a line with points (a,b) and (c,d) is given as
So, here the slope of line AB is
or, m = 12/5
Hence, the slope of the line with points A(-2, -7) and B(3,5) is (12/5).
