Let's denote her younger brother's height as \( x \). We are told that Cassandra's height is 6 inches less than 3 times her younger brother's height. So, we can write the relationship as:
\[ 3 \times x - 6 = 63 \]
To put this into the form \( px + q = r \) as required, we need to move the -6 to the other side of the equation:
\[ 3x = 63 + 6 \]
This simplifies to:
\[ 3x = 69 \]
So the equation in the form \( px + q = r \) is:
\[ 3x + 0 = 69 \]
Therefore, the "blank" in the provided equation "3x + blank= 63" would be "+0" to match the form exactly, but typically we would just write the necessary part of the equation without the "+0":
\[ 3x = 69 \]
Cassandra measured her height as 63 inches. That is 6 inches less than 3 times her younger brother's height. How tall is her younger brother?
Write an equation in the form px + q = r to represent this problem.
(2 points)
3x + blank= 63
1 answer
3 answers