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
4n-7=9
4n= 9+7
4n= 16
n= 16/4
N= 4
Answer:
14/15 meters
Step-by-step explanation:
We add each color of fabric to find the total amount of fabric used.
1/3 +3/5
We need to get a common denominator of 15
1/3 *5/5 = 5/15
3/5*3/3 = 9/15
5/15 + 9/15 = 14/15
Answer:
P = 60 inches
Step-by-step explanation:
Perimeter is the distance around the outside of a shape. So, to find perimeter, add up all the sides.
The side lengths were given, add them:
15 + 20 + 25
= 60
The perimeter is 60 inches.
