Answer:
8b- 13 6/7
Step-by-step explanation:
A product of 8 and b just means 8 x b or 8b.
13 6/7 less than that product means subtraction.
Therefore, it would be 8b -
Which expression will you generate if you apply the Distributive Property and combine the like terms in the expression x + 3y −
2 answers:
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Answer:
Therefore the dimensions of the rectangular garden are 23.42 ft by 20.5 ft.
Step-by-step explanation:
Given that,
A rectangular garden of area 480 square feet.
Let length of the rectangular garden be x which is surrounded by fence and width of the rectangular garden be y.
Then xy is the area of the given rectangular garden .
Then,
xy= 480
The length of the tree sides which are surrounded by brick wall is = 2y+x.
The cost for the brick wall is =Length×cost per feet= $12(2y+x)
The cost for the fencing is =Length×cost per feet= $ 9x
Now putting
Differentiating with respect to x
Again differentiating with respect to x
Now we set C'=0
.
Since at x=23.42,C''>0. So at x=23.42, the total cost will be minimum.
The width of the rectangular garden is
Therefore the dimensions of the rectangular garden are 23.42 ft by 20.5 ft.
The cost of the material is
=$983.70