Answer: C
Step-by-step explanation:
Answer:
3x +4y = 118
5x+6y =180
y= $25
Step-by-step explanation:
Let x = the cost of a flashlight
Let y = the cost of a sleeping bag
3x +4y = 118
5x+6y =180
Multiply the first equation by -5
-5(3x +4y) = -5*118
-15x -20y = -590
Multiply the second equation by 3
3(5x+6y) =3*180
15x + 18y = 540
Add the modified equations together.
We are using elimination to eliminate the variable x
-15x -20y = -590
15x + 18y = 540
----------------------------
-2y = -50
Divide by -2
-2y/-2 = -50/-2
y =25
Each sleeping bag costs $25
Total area of land = 1 + 1/2 = 3/2 square miles
Area of square fields = 1/4 x 1/4 = 1/16 square miles
Number of fields = (3/2) / (1/16) = 24 fields.
Answer:20000ft^3
Step-by-step explanation:
volume of triangular prism:
Base area x height
1/2 x 20 x 20 x40
(1x20x20x40) ➗ 2
16000 ➗ 2=8000ft^3
Volume of rectangular prism:
Length x width x height
40 x 15 x 20=12000ft^3
Total volume=8000+12000
Total volume=20000ft^3
Answer:
8 km = 5 miles
120 km = ? miles
8/5 = 120/x
8x=600
x=75
So 75 mi is the correct answer.
Let me know if this helps!
