Graph plots and see where is curves
Answer:
33%
Step-by-step explanation:
Assuming the weight of the mixture to be 100g**, then the weight of ryegrass in the mixture would be 30g.
Also, assume the weight mixture X used in the mixture is Xg, then the weight of mixture Y used in the mixture would be (100-X)g.
So we can now equate the parts of the ryegrass in the mixture as:
0.4X + 0.25(100-X) = 30
<=> 0.4X + 25 - 0.25X = 30
<=> 0.15X = 5
<=> X = 5/0.15 = 500/15 = 100/3
So the weight of mixture X as a percentage of the weight of the mixture
= (weight of X/weight of mixture) * 100%
= (100/3)/100 * 100%
= 33%
Answer:
≥ 420 boards
Step-by-step explanation:
Write the required relation between cost per board and "x" (the number of boards that must be sold).
143 + 30240/x ≤ 215 . . . . . . . note that the first term is <em>not</em> 143x
Subtract 143
30240/x ≤ 72
Multiply by x/72. This is a positive number because x is a positive number.
30240/72 ≤ x
420 ≤ x
At least 420 surfboards must be sold to limit the final cost per board to $215.
Answer:
Option T - Lowest
Option R - Highest
Option S - Neither
Explanation:
Option T $334.43 x 48 = $16,052.64 -- adding $52.64 in interest
Option R $203.67 x 72 = $14,664.24 -- adding $664.24 in interest
Option S $256.24 x 60 = $15,374.4 -- adding $374.4 in interest.
T = $52.64 (Lowest)
R = $664.24 (Highest)
S = $374.4 (Middle)
Answer:
4.95
Step-by-step explanation:
