Answer:
75%
Step-by-step explanation:
The image is 4 : 3 = 12 : 9. It is displayed on a screen that is 16 : 9, so it occupies 12/16 = 3/4 of the screen.
75% of the screen area is occupied
Answer:
45
Step-by-step explanation:
i dont think think is right answer but i will try thag
X=mumber of boys
y=number of girls.
I suggest this system of equations:
x+y=30
x=4y
We can solve this system of equations by susbtitution method.
4y+y=30
5y=30
y=30/5=6
x=4y
x=4*6=24
Answer: there are 6 girls
The required line is parallel to line x + y = 1 and passes through point (1, 1).
For parallel lines, slope is equal.
x + y = 1
y = -x + 1 => slope is -1
Line passing though point (1, 1) with slope = -1 is given by y - 1 = -(x - 1)
y - 1 = -x + 1
y + x = 1 + 1 = 2
i.e. Equation of the required lin is x + y = 2
Required distance is the distance between point (1, 1) and the point of intersection of lines x + y = 2 and 2x - 3y = 4.
x + y = 2 . . . (1)
2x - 3y = 4 . . . (2)
(1) x 2 => 2x + 2y = 4 . . . (3)
(2) - (3) => -5y = 0 => y = 0
From (1), x + 0 = 2 => x = 2.
i.e. the point of intersection of lines x + y = 2 and 2x - 3y = 4 is (2, 0).
Required distance is
Yes because you would pay less if the 20% was taken off first because it would be a lower amount since your taking a percent of the whole total and not combining the two