Let area to be painted = X m²
Rate for Allen = X / 16 m² / h
Rate for Brianne = X / 18 m² / h
Combined rate
X/16 + X/18 m² / h
[ 18X + 16X ] / 144 m² / h
34 X / 144 m² / h
time = X / [ 34 X / 144 ] h
time = 144 / 34 h
time = 4 h 14 min
Answer:
Natural numbers are the counting numbers, meaning that they make up the set {1,2,3,4,5,...} So , 4/5 is belong to natural number
These angles rotate in a clockwise direction
Find the gradient
m = y2-y1 / x2-x1
m = 4-(-2) / 3-(-3)
m = 6 / 6
m = 1
Insert the values of one of the points into y=mx+c to find c (choosing point (3,4)):
y = mx + c
4 = 1(3) + c
c = 4 - 3
c = 1
Therefore, the equation is:
y = x + 1
Here is what to do:
Add like terms. For example, you can add apples to apples, but not apples to oranges. In other words, you can add similar values of x with its others, but not the values of x with regular numbers.
The answer is 3x-3
