Question

I need help with a math assignment i linked the image below

Answer 1

`5x\text{ + 16}`

Step-by-step explanation:

Here, we want to write an expression for the perimeter of the triangle

The perimeter of the triangle is simply the sum of the side lengths of the triangle

Thus, we need to get all the side lengths before we can write an expression for the perimeter of the triangle

The bottom length is x

One of the sides is 7 more than 3 times the length of the triangle

3 times is (3 * x) = 3x

7 more than this means we have to add 7

The length of the side is thus 3x + 7

Now, we want to get the last side

The last side is 9 more than the bottom

The length is thus x + 9

Finally, we add up the lengths of all the sides to get the expression for the perimeter

We have this as:

`x\text{ + 3x + 7 + x + 9 = 5x + 16}`