Answer:
3x+6=4x
Step-by-step explanation:
Given :Brad can make 4 key chains in an hour. Velma can make only 3 key chains in an hour, but she already has 6 completed key chains.
To Find:Explain to Brad how he can use a system of equations to determine when he will have the same number of key chains as Velma.
Solution:
Let x be the hours in which they have same no. of keychains
Since Velma makes 3 key chains in 1 hour
So, she makes key chain in x hours= 3x
She already ha completed 6 keychains
Total keychains she made = 3x+6
Since Brad makes 4 keychains in one hour.
He made keychains in x hours = 4x
Since in x hours they will have the same no. of keychains
⇒3x+6=4x
⇒6=4x-3x
⇒6=x
So, in 6 hours they will have the same number of keychains.
Thus 3x+6=4x is the equation s to determine when he will have the same number of key chains as Velma.
