Answer:
663
Step-by-step explanation:
the total number of students can be determined using this equation :
(total ratio of Chinese and Indian students / total ratio of students) x n = 468
total ratio of Chinese and Indian students = 4 + 8 = 12
total ratio of students 4 + 8 + 5 = 17
N = TOTAL NUMBER OF STUDENTS
12/17) x n = 468
multiply both sides of the equation by 17/12
n = 663
Answer:
Step-by-step explanation:
Given
Required
Determine the line equation
This question will be answered using linear interpolation.
This is represented as thus:
Substitute values for x1,x2,y1 and y2
Cross Multiply
Make y the subject
Ya I think it is also the second one
You can make this into an inequality, using x as the number of uniforms.
100 + 12x < 61 + 15x
39 < 3x
13 < x, so they must buy more than 13 to get a better deal.
Answer:
option C = (x+2)(x+1)
Option D = 3x^2+2x
Step-by-step explanation:
option C
(x+2)(x+1)= x*x+x+2x+2
(x+2)(x+1)= x^2 +3x + 2
X^2 : squared term
Option D = 3x^2+2x
3x^2 : squared term
