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1. A swimming pool has the dimensions shown below. A path three feet wide surrounds
the pool.
113 feet
(7x-2) feet
1 Write an expression that represents the perimeter of the path.
2 Justice swims four laps the length of the pool, then swims 3 laps the width of the pool
with his little sister, Keraline. Write an expression for the length of the laps he swam.
3
\f x=12, what is the perimeter of the pool?
4 Write an equivalent expression for (Ba?-150+92-60-99-20).

Respuesta :

DWRead

Answer:

Step-by-step explanation:

Pool is 113 ft long and (7x-2) ft wide.

Pool + path is 113+2×3 = 119 ft long and 7x-2+2×3 = 7x+4 ft wide

Perimeter of pool + path = 2(119) + 2(7x+4) = 14x + 246 feet

I'm assuming that a lap is one full circuit.

4 lengthwise laps = 4×2×119 = 952 ft

3 widthwise laps = 3×2(7x-2) = 42x-12 ft

total = 42x + 940 ft

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