Answer:
Edge = 12
Total Surface Area = 72
Step-by-step explanation:
Volume of the cube = 1728
Length of the edge = ![\sqrt[3]{1728} = 12](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B1728%7D%20%20%3D%2012)
We know that
TSA (Total Surface Area) = 
where a = length of edge of cube
So,
TSA of cube = 
100y+x=230
150y+x=320
Y being the price per kilogram of steel bar, x being the added delivery fee.
If you were to solve the equaltion it would go x=230-100y by changing the first equation around the replacing that for the x int he second group, so you would get 150y+230-100y=320 or 50y=90 So Y=9/5dollars per kilogram. Or $1.8per kilogram, the delivery fee being $50
Answer:
200g/0.2kg
Step-by-step explanation:
8 × 25g = 200g
Answer:
Pen = y
25.00 + y
Step-by-step explanation:
expressions do not have equal signs.
25 more than the pen is 25 + y
the expression would be
25 + y
Answer:
0.720 = 0.7200
Step-by-step explanation:
These decimals are equivalent.
HTH :)
