Question 1174572: Diana wants to create a rectangular chocolate bar for their mini sweets store for her friend, Daisy, and for her treatment. She plans on making 500 chocolate bars that she wants to sell at $5 each. Given that the dimension of each chocolate bars are (6d+9) cm. and (4d+1) cm. in terms of length and width, respectively, and the bar's total perimeter is 278 cm. Find the value of d, the area of 1 chocolate bar, and the length of its diagonals(diagonals can be name randomly).
Answer by ikleyn(52781)   (Show Source):
You can put this solution on YOUR website! .
To find the value of d, write and solve this equation for the perimeter
(6d+9) + (4d+1) + (6d+9) + (4d+1) = 278.
Simplify and solve for d
20d + 20 = 278
20d = 278 - 20
20d = 258
d = 258/20 = 12.9 cm
Having this value of d, do the rest of the assignment on your own.
It is simple arithmetic.
To find the diagonal, use the Pythagorean theorem.
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Having your job partly done, boldly go forward from this point.
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