Let x = the length of a side of the square (m).
The area is
A = x²
The perimeter is
P = 4x
The rate of change of P with respect to x is
P'(x) = 4 (independent of x)
When A = 49 m², then x = 7 m.
The rate of P is 4.
Answer: 4
The company should expect 235 in sales
plug in 50 for x, 2.1 times 50 is 105, 105 + 130 is 235, y = 35.
$10-$5.42=$4.58
:.each bag of chips =$4.58/2=$2.29
Answer:
x = 12 and x = -9
Step-by-step explanation:
2x-20 = 4
2x = 24
x = 12
-2x = 18
x = -9