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ghwolf4p0m7x0
10.12.2019 •
Mathematics
The perimeter of a rectangle is 98 m. the length of the rectangle is 9 m more than four times the width. find the dimensions of the rectangle.
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Ответ:
l +9=4w
p=2l+2w
98=2(4w-9) +2w
98 = 8w-18+2w
116=10w
w=11,6 m
l = 4w-9 = 4*11,6 -9 = 46,4 -9 = 37,4 m
w=11,6 m
l= 37,4 m
Ответ:
The formula that can be used to determine the number of cupcakes sold is x = 0.2p - 0.6y.
Step-by-step explanation:
Given:
p = 5x+3y (1)
The formula that can be used to determine the number of cupcakes sold, i.e. x, given p and y, can be obtain by solving for x in equation (1) above as follows:
5x = p - 3y
Divide through by 5, we have:
x = P/5 - (3/5)y
x = (1/5)p - (3/5)y
x = 0.2p - 0.6y
Therefore, the formula that can be used to determine the number of cupcakes sold is x = 0.2p - 0.6y.