Question

Date:

Answer 1

Answer:

1. D. $n + 4 = 30$

2. A. $5h \ge 15$

3. D. $p + 5 \le 40$

Step-by-step explanation:

1. Initial number of students = n

Number of new students that joined the class = 4

New total number of students after 4 students joined the class (n + 4) = 30

The equation that can be used to find the number of students in the class before new students joined, n, is represented by the equation below:

$n + 4 = 30$

2. The goal of Lucy is to walk at least 15 miles. This means, she must walk a distance that is equal to 15 or greater than 15 (goal: ≥ 15).

Rate of walking = 5 miles per hour

Number of hours = h

To determine how many she would walk in order to attain her goal, the inequality below represents the situation:

$5h \ge 15$

3. Mr Sanchez has $40 as the maximum he can spend. This means the total of all his spending must be equal to or less than $40 (total spending: ≤ 40).

Cost of ticket to the museum = $5

Cost of spending on other things at the museum = p dollars

Total spending = $p + 5$

Since total spending limit is $40, the following inequality can be used to determine the possible values for p:

$p + 5 \le 40$