Marcia can make 5 candles in an hour. Kevin can make only 4 candles in an hour, but he already has 7 completed candles. Explain to Marcia how she can use a system of equations to determine when she will have the same number of candles as Kevin.
I'm so confused
+5265 The two equations we will use are:
y=5x
and
y=4x+7
Set them equal to each other.
5x=4x+7
Subtract 4x from both sides.
x=7, so they will have the same amount of candles in 7 hours.
PROOF
5(7)=4(7)+7
35=28+7
35=35
+5265 The two equations we will use are:
y=5x
and
y=4x+7
Set them equal to each other.
5x=4x+7
Subtract 4x from both sides.
x=7, so they will have the same amount of candles in 7 hours.
PROOF
5(7)=4(7)+7
35=28+7
35=35
