Answer:
16. 5/3
Step-by-step explanation:
let the no of tranquilizer be x
therefore
5/4 + x =18
x= 18-5/4
= 16 5/3
Answer:
17/15
Step-by-step explanation:
6/5 * 17/18
1/5 * 17/3
17/15
Answer:
The parabolic equation does not intersect the linear equation.
Explanation:
Given equation's:
To solve , use substitution method by inserting 2nd equation into 1st

when substituted y = -2x

collect terms

simplify

Find discriminant:



As the discriminant is negative, it tell us that they both does not intersect each other.
Answer:
45 students speak Spanish at Francis Lewis High School
Step-by-step explanation:
Option1:

18000 = 400x
x = 45 students speak Spanish at Francis Lewis High School
Option2:
72 ÷ 400 = 0.18
0.18 * 250 = 45 students speak Spanish at Francis Lewis High School
Answer:
Area: 12x + 66
Perimeter: 2x + 35
Step-by-step explanation:
Area is the base and the height multiplied, 12(x) + 12(5.5), which is simplified to 12x + 66.
Perimeter is all the sides added together, (x + 5.5) + (x + 5.5) + 12 + 12, which is grouped to be 2x + 11 + 24, then simplified to 2x + 35.