Answer:
C
Step-by-step explanation:
Answer:
60% is the answer 60/100
Step-by-step explanation:
30:50 is the ratio
60% is the percentage
as 60/100 is = 30:50
if it was 30% then the gallons held by her car would be 100
because it was 50 we just multiply the top to make a percentage equal to 30 x 2 = 60.
As 50 x 2 =100
= 60/100
A) The rate of change is -40 songs each week, that is because the amount of songs left to be downloaded decrease by 40 each week
B) lets use 2 points of the graph p1(0, 200), p2(1, 160)
calculate the slope:
m = (y2- y1)/(x2 - x1) = (160 - 200)/(1 - 0)
m = -40
now use line equation in form point-slope:
y - y1 = m(x - x1)
y - 200 = -40(x - 0)
y = -40x + 200
To find the length of side of square, we have to use distance formula.
Points are (-4,-6) and (5,-1)
Formula for distance between two points.
So length of side of square is 10.3 units.
Answer: 10.3 units
