Answer:
11 inches by 11 inches
Step-by-step explanation:
The dimensions of the original photo were 11 inches by 11 inches.
We are informed that the area of the reduced photo is 64 square inches and that In the equation (x – 3)^2 = 64, x represents the side measure of the original photo.
In order to solve for x, we shall first take square roots on both sides of the equation;
The square root of (x – 3)^2 is simply (x - 3).
The square root of 64 is ±8 but we ignore -8 since the dimensions of any figure must be positive.
Therefore, we have the following equation;
x - 3 = 8
x = 8 + 3
x = 11
If the variable x is a positive integer, the list of possible values of x can be represented as; x >=1.
<h3>Positive integers</h3>
According to the question;
- We are required to list the possible values of x provided the variable x is a positive integer.
On this note, the list of possible values of x is all numbers greater or equal to 1 in which case these numbers do not have a fractional component.
Read more on positive integers;
brainly.com/question/13292955
Answer:
x=5
Step-by-step explanation:
Since the triangles are similar we can use ratios to solve
4.5 7.5
---- = ------
3 x
Using cross products
4.5x = 3 * 7.5
4.5x = 22.5
Divide each side by 4.5
x = 22.5/4.5
x=5
28 is 4 times 7, so we will rewrite it like that.
7 is 7 times 7, so we will rewrite it like that.
So the simplest form is,
12x+9= 45, x =3 3 is the answer
