3X -3 => 9
3X => 9+3
3X => 12
3X/3 => 12/3
X => 4
tell me if you don't understand
(6*5) / 3 = w
Sometimes problems will give extra information to figure stuff out, for this problem you really only needed to know three of the numbers, 6, 5 and 3.
Answer:
- perimeter: 5/8
- area: 25/64
Step-by-step explanation:
You want the ratios (red to blue), of perimeter and area, given that corresponding sides have the ratio red to blue = 5 to 8.
<h3>Perimeter ratio</h3>
The ratio of perimeters is the ratio of corresponding side lengths:
red to blue = 5 / 8
<h3>Area ratio</h3>
The ratio of areas is the square of the ratio of corresponding side lengths:
red to blue = (5 to 8)² = 25 / 64
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<em>Additional comment</em>
Ratios are customarily expressed in any of three equivalent forms:
- 5 to 8
- 5:8
- 5/8 "fraction" form
Since we want to find f(2), we know that x=2.
We will then plug in x = 2 to our f(x)
We will then get
f(2) = 7^2 - 5 = 49 - 5 = 44
