Cause god made it that way lol
Answer:
Let call the angle X
Its complement will be 90-x
Its supplement will be 180-x
(180-x)+15 = 4(90-x)
180-x+15 = 360-4x
4x-x = 360-180-15
3x = 165
x = 55
Prove
The complement of 55 is 35
And the supplement of 55 is 125
Now we must see if the relation stated holds
125+15 = 4(35)
125+15 = 140 The measure of the supplement of an angle is 15 degrees less than four times the measure of the complement.
140 = 140
Therefore the solution of the problem is given by an angle of 55 degrees.
Answer:
slope = -7/2x
Step-by-step explanation:
you can solve the equation in order to make it slope-intercept form.
7x + 2y = 5
2y = -7x + 5
divide everything by 2
it becomes y = -7/2x + 5/2
50 cm in meters is 0.5 m
Area covered by a tile = 0.5 * 0.5 = 0.25 m^2
Total area for floor = 5 * 4 = 20 m^2
Tiles required = 20/0.25 = 80 tiles
If 10 tiles cost £7.50 then 1 tile = <span>£7.50/10
then 80 tiles = 7.50/10 * 80 = </span><span>£60.00</span>
Answer:
Step-by-step explanation: