Answer:
4x + 5y = - 23
Step-by-step explanation:
the equation of a line in slope-intercept form is
y = mx + c ( m is the slope and c the y-intercept )
rearrange 4y - 5x = 20 into this form
add 5x to both sides
4y = 5x + 20 ( divide all terms by 4 )
y =
x + 5 ← in slope-intercept form
with slope m = 
given a line with slope m then the slope of a line perpendicular to it is
= -
, hence
= - 1 /
= - 
y = -
x + c ← is the partial equation
to find c substitute (- 2, - 3) into the partial equation
- 3 =
+ c ⇒ c = - 
y = -
x -
← in slope-intercept form
multiply all terms by 5
5y = - 4x - 23 ( add 4x to both sides )
4x + 5y = - 23 ← in standard form
Surface area is the area that is on the outside of a figure and will be used when you have to cover something, but a volume is an area inside an object and is used in finding the amount someone can hold within something else.
Answer: £ 214
Step-by-step explanation:
Pay for first 15 hours = 8 * 15 = £ 120
Pay for remaining extra hours is the remaining days of Friday which is 3 hours. So,
Pay = 10 * 3
Pay = £ 30.
Finally, find pay for Saturday
Pay = 4 * ( 2 * normal rate )
Pay = 4 * ( 2 * 8 )
Pay = £ 64
Total pay = 120 + 30 + 64
Total pay = £ 214.
Answer:
lol i think the answer is 5