Answer:
C = 20
Step-by-step explanation:
What happens if simultaneous Equations have two of the same variable like below? How would I solve it?
6A + 4B + 5C = 390
6A + 4B + 5.75C = 405
Step 1
We solve for C first
6A + 4B + 5C = 390....Equation 1
6A + 4B + 5.75C = 405... Equation 2
We substract Equation 1 from Equation 2
0.75C = 15
C = 15/0.75
C = 20
Answer:
x = 117
Step-by-step explanation:
Given
11 - = 0 ( subtract 11 from both sides )
- = - 11 ( square both sides )
(- )² = (- 11)²
x + 4 = 121 ( subtract 4 from both sides )
x = 117
Answer:
It already is in standard form
Step-by-step explanation:
the answer to that equation is 2 which means it's between 1 and 10. therefore it's already in standard form or "scientific notation"
Answer:
its many solutions
Step-by-step explanation:
So we know that the length of the rectangle is 9 meters.
In order to find area of a rectangle, you multiply the length by the width.
To find the width, you divide the area by the side you do have , which is 9 meters.
72 divided by 9 is 8.
So the width 8 meters, and now to find the perimeter you must add all sides of the rectangle.
9+9+8+8 = 34.
The perimeter of the rectangular garden is 34 meters.