Answer:
when x=3 the value of y is 9
Step-by-step explanation:
6.4x+2.8y=44.4, when x=3
\(6.4x+2.8y=44.4\)
To find y when x=3, plug in 3 for x in the given equation
\(6.4x+2.8y=44.4\)
\(6.4(3)+2.8y=44.4\)
\(19.2+2.8y=44.4\)
Subtract 19.2 on both sides
\(2.8y=25.2\)
Divide both sides by 2.8
y=9
So when x=3 the value of y is 9
