Answer:
t = cost of a ticket
4t+55
Step-by-step explanation:
Cost 1
4 airline tickets
Let t = cost of a ticket
4*t
Cost 2
extra baggage fee
55
Add the costs together
4t+55
Just use the coefficients for each variable and put it in a matrix. Is the second question set equal to something? Because then you would put it in place as the question mark. (Did the pic come through?)
So the 3x3 matrix is made up of the coefficients and then to augment the matrix, you add another column at the end with the solutions. Good luck!
Considering that the trench is modeled by a rectangular prism, the volume that was removed is 1776 cubic feet.
The volume of a <u>rectangular prism of length l, width w and height h</u> is given by:

In this problem, we want the measures in feet, and considering that 1 feet is 12 inches:
- The length is of 102' 6''(102 feet and 6 inches), hence
.
- The width is of 5' 4'', hence
.
- The depth(height) is of 3' 3'', hence
.
Then:

The volume that was removed is 1776 cubic feet.
To learn more about the volume of rectangular prisms, you can take a look at brainly.com/question/17223528
The answer will be 4.9. =)
Since we know 1 metre is 0.01 dekametres, we can use this to answer the question!
We simply multiply 490 by 0.01. =)