katsukibakugou05
contestada

**PLEASE HELP**

A school playground is rectangular and has a length of 50 cm and a width of 30 cm. A safety zone of uniform width surrounds the playground. If the area of the safety zone equals the area of the playground, what is the width of the safety zone, to 2 decimal places?

Respuesta :

Total area of zone and playground, (x+50)(x+30);
and this whole area is twice the area of the playground, consistent with description.
highlight_green%28%28x%2B50%29%28x%2B30%29=2%2A50%2A30%29;
Solve for x.

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