12.8-12.4=0.4
0.4 divide by 12.4 = 0.0322
0.0322 x 100 = 3.22%
To find the x intercept, sub in 0 for y and solve for x
3x - 2y= 18
3x- 2(0) = 18
3x = 18
x = 18/3
x= 6.....so the x int is (6,0)
To find the y int, sub in 0 for x and solve for y
3x - 2y = 18
3(0) - 2y= 18
-2y = 18
y = 18/-2
y = -9...so the y int is (0,-9)
and its as easy as that....
x - 3y = 0
x int = (0,0)
y int = (0,0)
2x + 5y = 15
x int = (7.5,0)
y int = (0,3)
3x - 2y = 7
x int = (7/3,0)
y int = (0,-7/2)
Answer:
£27.00
Step-by-step explanation:
3 × £9 = £27 amount Lee gets
Find the vertical and horizontal difference between the two given points:
Horizontal is the Y values: 4 - -4 = 4+4 = 8
Vertical is the X values 7 - -1 = 7+1 = 8
Multiply the changes by the ratio:
Now copy the dot on A 2 places to the left and down 2 places and the dot lands on point (5,2)
8 * 1/4 = 2
The answer will be 4543.078
Hope this helps:)