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The area of a rectangular decki: 15. 75 ft?. If the width
of the deck is 1 foot shorter than the length, what are
the dimensions of the deck?
A 3.0ft by5.25ft
B 3.5 by 4.5ft
C 4.5ft by 5.5ft
D5.5ft by 4.75ft
E 7.5 by 6.5 ft


Right answers please asap

Respuesta :

mhanifa

Answer:

  • B. 3.5 ft by 4.5 ft

Step-by-step explanation:

Let the width is x, then the area is:

  • x(x + 1) = 15.75
  • x² + x - 15.75 = 0

Solving we get:

  • x = 3.5

So correct choice is B

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