Step-by-step explanation:
(x+2y)²=x²+4xy+4y²
...........
905 or 2045 because I think those are the right answer
Answer:
Should be 25
Step-by-step explanation:
A = B+32
B = 5C
A = 5C+32
C has d dollars so replace d for c
A = 5d+32
Let x represent the number of pounds of $10.75/lb coffee used in the mix.
.. 10.75x +3.25(100 -x) = 5.65*100 . . . . . . total cost of coffee blend
.. x(10.75 -3.25) = 100*(5.65 -3.25) . . . . . .separate x-terms from non-x terms
.. x = 240/7.5 = 32
32 pounds of $10.75/lb coffee should be used
68 pounds of $3.25/lb coffee should be used
