handog12
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The yearbook staff enlarges a picture with a length of 5 inches and a width of 7
inches by a scale factor of 3. The staff decides the enlarged picture is too large and reduces it by a scale factor of 0.5. Will the final image of the picture fit in an area of 80 square inches?


No, the area of the picture is 315 square inches.


Yes, the area of the picture is 35 square inches.


No, the area of the picture is 157.5 square inches.


Yes, the area of the picture is 78.75 square inches.

Respuesta :

annamar322
i believe yes, the area of the picture is 78.75 square inches. hope this helps you

present dimensions = 5*7

dimensions after scaling with factor 3 = 15*21

dimensions after reducing by scale factor 0.5 = 7.5*10.5

area of rectangle = length * breadth

so area of yearbook = 7.5*10.5 = 78.75

because, 78.75<80

so, the yearbook will fit in area of 80 inches^2

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