Answer:
14
Step-by-step explanation:
21 divided by 3 =7 7 per 1/3
7x2=14
Answer:
x= 60
Step-by-step explanation:
if y is the other missing side
y^2 = 64^2 + 48^2
y^2 = 4,096 + 2,304
y^2 = 6,400
100^2 = x^2 +y^2
x^2 = 10,000 - 6,400
x^2 = 3,600
x = 60
Let the side length of the square be x, then A = x^2
but diagonal (z) = sqrt(2x^2)
z^2 = 2x^2
x^2 = 1/2 z^2
Thus, A = 1/2 z^2
dA/dz = 1/2 (2z) = z
The rate of change is z.
When z = 4, the rate is 4.
45% of 450 is 202.50
$202.50 is the price of markup
$652.50 is the selling price
(8+5)/25 is rational. It simplifies down to a rational decimal.
(8+5/25)
13/25
0.52
