The answer is C. Without changing the width and position of the compass, draw an arc between L and M.
Answer:
Option B
40x + 50y = 130
5x - 4y = 16
Option C
20x + 25y = 65
-20x + 16y = 64
Step-by-step explanation:
we have
4x+5y=13 ----> equation a
10x-8y=-32 ----> equation b
we know that
If two system of equations are equivalent, then their solution is the same
Part 1)
step 1
Multiply by 10 equation a both sides
10(4x+5y)=10(13)
40x+50y=130 ----> equation a'
step 2
Divide by 2 equation b both sides
(1/2)(10x-8y)=(1/2)(-32)
5x-4y=-16 ----> equation b'
so
The system of equations a and b and the system of equations a' and b' are equivalent
therefore
The system of equations a' and b' have the same solution as the given system
Part 2)
step 1
Multiply by 5 equation a both sides
5(4x+5y)=5(13)
20x+25y=65 ----> equation a'
step 2
Multiply by -2 equation b both sides
-2(10x-8y)=-2(-32)
-20x+16y=64 ----> equation b'
so
The system of equations a and b and the system of equations a' and b' are equivalent
therefore
The system of equations a' and b' have the same solution as the given system
Move the decimal to the right 8 places
