Question

denice buys a pack of 79 highlighters. she gives 9 to her teacher and shares the remaining highlighters equally between herself and 4 friends.

Explanation:

Step1: Find remaining highlighters

Subtract the 9 given to the teacher from the total 79: $79 - 9 = 70$.

Step2: Determine number of people sharing

Denice and 4 friends make $1 + 4 = 5$ people.

Step3: Calculate highlighters per person

Divide the remaining 70 by 5: $70 \div 5 = 14$. So the equation from the bar model is $5x + 9 = 79$, solving for $x$ gives $x = (79 - 9) \div 5 = 14$.

Answer:

The value of \( x \) is 14, and the equation (or calculation) is \((79 - 9) \div 5 = 14\) (or \(5x + 9 = 79\) with \(x = 14\)).