Answer:
x = 35
Step-by-step explanation:
Solve for x:
5 (x + 20) = 7 x + 30
Expand out terms of the left hand side:
5 x + 100 = 7 x + 30
Subtract 7 x from both sides:
(5 x - 7 x) + 100 = (7 x - 7 x) + 30
5 x - 7 x = -2 x:
-2 x + 100 = (7 x - 7 x) + 30
7 x - 7 x = 0:
100 - 2 x = 30
Subtract 100 from both sides:
(100 - 100) - 2 x = 30 - 100
100 - 100 = 0:
-2 x = 30 - 100
30 - 100 = -70:
-2 x = -70
Divide both sides of -2 x = -70 by -2:
(-2 x)/(-2) = (-70)/(-2)
(-2)/(-2) = 1:
x = (-70)/(-2)
The gcd of -70 and -2 is -2, so (-70)/(-2) = (-2×35)/(-2×1) = (-2)/(-2)×35 = 35:
Answer: x = 35
The ABE and DBC are both made of DBE and and ABD or EBC so if the firsts are equal than these are also equal
Answer:
The above function will get the minimum value at the value of p =14 ....
Step-by-step explanation:
Take the derivative of the given function with p and equate to zero to minimize the given function.
c(p) = p^2 - 28p + 250
(d/dp) c(p) = (d/dp)p^2 - 28p + 250 = 2p-28
(d/dp) c(p) = 0
2p-28 = 0
Move the constant to the R.H.S
2p = 28
Divide both sides by 2
2p/2 = 28/2
p = 14
The above function will get the minimum value at the value of p =14 ....
