K is the slope
it is decending when the slope is negative
so for all values of k such that k<0, it will be decending
To find the quotient you do 6/ (-1/2). You keep, change, flip when dealing with fractions.
About $1.73. Since 378 cost six dollars, The price of one equates to be about 0.0158. Using this knowledge, we can multiply by 109 to get roughly 1.7301
This is true as the ratio of area is equal to ratio of sides squared
To answer this item, let x be the amount of water. The concentration (in % sugar) of the solution is calculated by dividing the amount of sugar by the total amount. That is,
C = (S/ (S + x))(100%)
Substituting the known values to the equation,
75 = ((0.5/(0.5 + x))(100%)
The value of x from the equation is 0.167.
<em>Answer: 0.167 lbs of water</em>
