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Ana is planning to plant roses around the edge of a circular flowerbed having a diamater of 7 feet. If the total cost of planting roses is $176, what is the unit price of planting roses per foot? $____ per foot

Sagot :

Answer:

$8 per foot​

Explanation:

Diameter of the circular flowerbed = 7 feet

Radius of the circular flowerbed = 7/2 = 3.5 feet.

Since she wants to plant roses around the edge, we deal with the circumference.

Circumference of a circle = 2πr

Therefore:

[tex]\begin{gathered} \text{Cirumference of the flowerbed=2x }\pi\times3.5 \\ =21.99\text{ ft} \end{gathered}[/tex]

If the total cost of planting roses is $176

The unit price of planting roses per foot

[tex]\begin{gathered} =\frac{\$176}{21.99ft} \\ =\$8\text{ per foot} \end{gathered}[/tex]

The unit price of planting roses is $8 per foot.

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