Step-by-step explanation:
3x = 12 - 18
3x = (- 6)
X = (-6)/3
x = (-3)
The number that presents 8/9 to the nearest percent is .89.
Answer:
x=-5/2,4
Step-by-step explanation:
According to the problem, the length is 2 feet more than its width, which is expressed as the following function

If the width is x, then the length is x+2.
We can express the following function for the area

Let's replace the width x = 11 ft.

<h2>Hence, the area is 143 square feet. </h2><h2>The function for the area is</h2>

Where x represents the width.
Answer:
33 students
Step-by-step explanation:
Since there aren’t going to be fractions of people, you can just count up using the whole numbers in the ratio (4 on the left, 7 on the right) and then check if the sum is between 24 and 40.
4:7 = 11 students (not enough)
8:14 = 22 students (not enough)
12:21 = 33 students (fits criteria)
12 boys, 21 girls, for a total of 33 students.