A radical is also known as a square root. An example of a radical is √25 or ∛36.
That would be the number of permutations of 3 from 10.
= 10P3 = 10! / 7! = 10*9*8 = 720
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
Answer:
Step-by-step explanation:
<u>Negative four is at least six less than a number</u>
<u>Sum of a negative two & nine times a number is less than seventy nine</u>
- -2 + 9x < 79 ⇒ 9x < 81 ⇒ x < 9
<u>Combined inequality:</u>
