Answer:
<h2 />
Step-by-step explanation:
9y+3
Answer:
Step-by-step explanation:
The Perimeter, P (feet) = 2 x Width(ft) + 2 x Length(ft)
P = 2*(3x-5) + 2*(2x+8)
P = 6x -10 + 4x + 16
P = 10x + 6 (in feet)
Total cost = P(ft)*(Cost ($/ft)) [The Cost is $5/ft]
Total cost = ((10x + 6)ft)*(5 ($/ft)) = <u>$(50x + 30)</u>
Since no value is given for x, this is the closest we can get to an answer.
[I notice that x must be greater than (1 2/3), otherwise, (3x-5) would be negative. Perhaps a negative distance is valid for the Klingons, but let's assume this is on Earth.]
Answer:
in decimal form (rounding to four decimal places) 4.6667
in fraction form 14/3
Step-by-step explanation:
(2/3)7
Answer:
C. 153.84 mL
Step-by-step explanation:
Let's say x is the volume of 75% solution and y is the volume of 10% solution.
Sum of the volumes:
x + y = 500
Sum of the alcohol amounts:
0.75x + 0.10y = 0.30(500)
0.75x + 0.10y = 150
Solve the system of equations using either substitution or elimination. I'll use substitution.
y = 500 - x
0.75x + 0.10 (500 - x) = 150
0.75x + 50 - 0.10x = 150
0.65x = 100
x = 153.84
You need 153.84 mL of 75% solution.