Answer:
x = 3
Step-by-step explanation:
8(x+2) = 40
8x + 16 = 40
8x = 24
x = 3
The formula for area of a triangle is: 1/2 x base x height.
You are given the height of 4 and the area of 4.
Replace those in the formula and solve for x ( base)
4 = 1/2 x base x 4
Divide both sides by 4:
1 = 1/2 x base
Multiply both sides by 2:
2 = base
x = 2
Well first you want to be trying to solve for the same variable in both problems. Lets solve for Y.
This means we must make both equations say " Y="
first we subtract 12x from both sides of "12x-3y=3" which leaves us with
-3y=3-12x and y=4x-1.
you are basically going to merge the 2 problems by adding "1" to both problems and then subtracting "4x" from both as well as subtracting "y" from both. This gets rid of a variable in one problem and essentially puts in to the other in the process.
This leaves you with -4y=4-16x
Can you solve from there?
Functions are used to represent tables and equations
- The function that represents the number of imports is f(x) = 2x
- The function that represents the number of exports is f(x) = 2 + x
<h3>How to determine the import function</h3>
From the table, we can see that the values of the import is twice the number of months
This is represented as:
y = 2x
Rewrite as a function
f(x) = 2x
Hence, the function that represents the number of imports is f(x) = 2x
<h3>How to determine the export function</h3>
From the table, we can see that the values of the export is two more than the number of months
This is represented as:
y = 2 + x
Rewrite as a function
f(x) = 2 + x
Hence, the function that represents the number of exports is f(x) = 2 + x
Read more about linear functions at:
brainly.com/question/15602982