This one is hard but I give it ago: so if Brad has got 4 chains and he made that in 1 hour and Velma can only make 3 chains in 1 hour but she has made 6 already. That means Velma has used 2 hours to make them 6 chains. So Brad if he does 2 hours that makes 12 chains,Then it Velma does 2 hours more she makes 12 chains as well. So they have the same amount of number.
Hopefully that helps :D
9 5/6 - 2 1/3
9 5/6 - 2 2/6
9 - 2 = 7
5/6 - 2/6 = 3/6
7 3/6
3/6 = 1/2
7 1/2
Answer:b
Step-by-step explanation:
1. System B from System A by replacing one equation with itself where the same quantity is added to both sides
2. Yes, both system A and system B are equivalent and therefore has the same solution
<h3>How to prove the statements</h3>
System A
x − 4y= 1
5x + 6y= −5
System B
x = 1+4y
5x + 6y= −5
1. System B can be gotten from system A by
from the first equation of A
x − 4y= 1
Make 'x' subject of formula
x = 1 + 4y
This makes it equal to tat of system B
Thus, replacing one equation with itself where the same quantity is added to both sides
2. System A
x = 1 + 4y
5x + 6y= −5
System B
x = 1 + 4y
5x + 6y= −5
From the above equations, we can see that both system A and system B are equivalent and therefore has the same solution.
Learn more about linear equations here:
brainly.com/question/4074386
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