Mr. Baker wants to enlarge a photo that is 5 by 7 inches so that the dimensions are 3 times larger than the original. How many times larger than the original photo will the area of the new photo be?
I am sorry that nobody responded to your post earlier.
If the dimensions are three times larger that means that the new photo will be 15 x 21 inches.
Find the area of the original photo by multiplying 5 x 7. Do the same for the new photo. Then divide the area of the new photo by the area of the old photo. This is your answer.
I hope this helps. Thanks for asking
dana has a photograph that is 4in.wide and 5in.long. she has the photoenlarged so that both dimensions are tripled. how many times larger than the original area will the area of the enlargement be?
Yes, you are correct! To find the area of the original photo, you multiply the length (5 inches) by the width (7 inches), which gives you an area of 35 square inches.
To find the area of the new photo, you multiply the new length (15 inches) by the new width (21 inches), which gives you an area of 315 square inches.
To find how many times larger the area of the new photo is compared to the original, you divide the area of the new photo (315 square inches) by the area of the original photo (35 square inches).
315 square inches divided by 35 square inches equals 9. Therefore, the area of the new photo is 9 times larger than the area of the original photo.
So, the area of the new photo will be 9 times larger than the area of the original photo.
To find the area of the original photo, multiply the length (5 inches) by the width (7 inches):
Area of original photo = 5 inches * 7 inches = 35 square inches
Since the new photo is 3 times larger in each dimension, the dimensions of the new photo will be:
Length = 5 inches * 3 = 15 inches
Width = 7 inches * 3 = 21 inches
To find the area of the new photo, multiply the length (15 inches) by the width (21 inches):
Area of new photo = 15 inches * 21 inches = 315 square inches
To determine how many times larger the area of the new photo is compared to the original photo, divide the area of the new photo by the area of the original photo:
315 square inches / 35 square inches = 9 times larger
Therefore, the area of the new photo will be 9 times larger than the original photo.