Answer:
answer is B) 87.5 squared inches.
Step-by-step explanation:
The original dimensions of the photograph were 5 inches by 7 inches so, the area of the original photograph can be computed as the area of a rectangle:
[tex]Area=(heigh)(base)[/tex].
So
[tex]Area=(5)(7)[/tex]
[tex]Area=35[/tex]squared inches.
Now, for computing the area of a photograph of 250% the size of the original we use a simple rule of three:
35 squared inches -------- 100%
X squared inches --------- 250%
By this, we have:
[tex]X = \frac{(35)(250)}{100}[/tex]
[tex]X = 2.5*35[/tex]
[tex]X = 87.5[/tex]
The area of the enlarged photograph is 87.5 square inches.
The first step is to determine the area of the photograph before it was enlarged. A photograph has the shape of a rectangle. So, the formula for the area of a rectangle would be used.
Area = length x width = 7 x 5 = 35
Area of the enlarged photograph = 2.5 x 35 = 87.5
To learn more about how to calculate the area of a rectangle, please check: https://brainly.com/question/16595449
