a photo 5 inches wide and 7 inches long is enlarged. The sides of the new photo are in proportion to the original. The new photo is 14 inches wide. how do i find the length
This is a good problem for a proportion. Let x equal the new length.
5/14 = 7/x
Cross multiply:
5x = 98
x = 19.6
us proportions, then cross multiply:
5/7 = 14/x
5*x = 7*14
5x = 98
5x/5 = 98/5
x = 19.6 inches in length
7.6x-3.5x= -123
To find the length of the enlarged photo, you can use the concept of proportions. Since the sides of the new photo are in proportion to the original, you can set up a ratio using the given information.
Let's denote the length of the original photo as "x". The width of the original photo is 5 inches, and the width of the enlarged photo is 14 inches. Therefore, you can set up the following proportion:
(original width) / (original length) = (enlarged width) / (enlarged length)
Or, substituting the given values:
5 / x = 14 / 7
To solve for x, you can cross-multiply and then divide:
5 * 7 = 14 * x
35 = 14x
Finally, divide both sides of the equation by 14:
35 / 14 = x
2.5 = x
So, the length of the original photo is 2.5 inches.