Answer:
Step-by-step explanation:
Answer:
2.50x+1.75y<=200
Step-by-step explanation:
Consider the data
Total amount of money available $200
Cost of cedar is $2.50 per feet. The the cost of pine $1.75 per feet
x=# of feet of cedar brought
y=# of feet of pine brought
As the cost of cedar wood is $2.50 and x is the # of feet of cedar brought, so the total cost of # of the wood is $2.50x
As the cost of pine is $1.75 and y is the # of feet of pine brought, so the total cost of # of the wood is $1.75y
The total cost of the # of cedar and pine woods together is
$2.50x+$1.75y
And the total amount available is 200, and it doesn't exceed so
$2.50x+$1.75y<= 200
Call the curve
, then the length of
is given by the line integral
Left side:
x+x+x+1+1+1+1+1+1+1+1 = 3x + 8
Right side:
x+x+x+x++1+1+1+1+1+1
Left side = Right side to solve x
3x + 8 = 4x + 6
Subtract 4x from both sides
3x + 8 - 4x = 4x + 6 - 4x
Simplify
-x + 8 = 6
Subtract 8 from both sides
-x + 8 - 8 = 6 - 8
Simplify
-x = -2
Multiply both sides by (-1)
-x * (-1) = -2 * (-1)
Simplify
x = 2
Answer
C. x = 2