Now, solve for y, the temperature of the water after 12 minutes.

y
=
10x
+
20
y
=
10·12
+
20
y
=

1 answer

To solve for \( y \) after 12 minutes using the equation \( y = 10x + 20 \), we can substitute \( x = 12 \) into the equation:

\[ y = 10(12) + 20 \]

Now, calculate:

\[ y = 120 + 20 \]

So,

\[ y = 140 \]

Therefore, the temperature of the water after 12 minutes is \( y = 140 \) degrees.