Answer:
A pound of potato costs $3.10
A dozen egg costs $5.5
A wheel of cheese costs $6.25
Step-by-step explanation:
Represent
- a dozen egg with D
- a wheel of cheese with W
- a pound of potato with P
For Adam:
---- (1)
For Barry:
---- (2)
For Charles:
---- (3)
Make D the subject in (2)

Substitute 36.50 - 10P for D in (3)



Collect Like Terms



Solve for P


Substitute 3.1 for P in 



Substitute 3.1 for P and 5.5 for D in 


Solve for W


Okay find the volume of the cube: 5*5*5=125 inches cubed
Now find the volume of the spheres: 4/3pir^3=24/3pi
125/(24pi/3) = 4.97 So you can make 4 balls
Answer:
A) d = 25/π
Step-by-step explanation:
To find the diameter of a circle, refer to the circumference formula:
C = d (π)
25 = d (π)
25/π = d
d = 25/π
It would depend on what someone would be repairing wether it be a computer repair, car repair, plumbing etc.
regardless 9 hours is a very long time so i would not expect it to be too cheap.
hope this helps