Question

I've ha a problem with this question..

The table shows the width and length of different pictures that Jacob has enlarged for the school yearbook:

Enlarged Pictures
Width
(inch)
2
4
6
Length
(inch)
9
18
27

Based on the table, what is the length of a picture that has a width of 18 inches?

36
81
90
96


If you can answer this correctly I thank you a million

Answer 1

81 inches

Step-by-step explanation:

The length values in the table are all 4.5 times the corresponding width values. You want the length corresponding to a width of 18 inches. Multiply 18 inches by 4.5:

... (18 in)×4.5 = 81 in

_____

Once you recognize that the length is proportional to the width, you can choose any convenient table value that is a factor of your width of 18 inches. Use that value to determine the associated length.

For example, a width of 2 inches has an associated length of 9 inches. Your width is 9 times that (2 in × 9 = 18 in), so your length will be 9 times the length of 9 in: 9 in × 9 = 81 in.

Or, you can use a little wider picture from the table: multiply (width, length) = (6 in, 27 in) by 3 to get (18 in, 81 in).