L = 4w + 9.7
2l + 2w = 91.4
2(4w + 9.7) + 2w = 91.4
8w + 19.4 + 2w = 91.4
10w = 72
w = 72/10 = 7.2 cm
l = 4(7.2) + 9.7 = 38.5
Dimension = 38.5 by 7.2
Let x be the number of days for which the costs are the same, then
110 + 46x = 70 + 54x
54x - 46x = 110 - 70
8x = 40
x = 5
Therefore, it will take 5 days for the cost to be the same.
Answer:
The rusting of iron is represented by the equation 4Fe +3O2 --> 2Fe2O3.
Step-by-step explanation:
Answer:
w = - 
Step-by-step explanation:
3 1/4 = 1/2 + w
Cross Multiply
31(2 + w) = 4
Divide both sides by 31
= 
(simplify) -> 2 + w =
Subtract 2 from both sides
2 + w - 2 + - 2 (simplify) -> -
w = -
