Choose all answers that are correct.
A. (-9,-12)
B. (1,-4)
C. (4,8)
D. (6,0)
The ordered pairs are (-9,-12) and (6,0) satisfying the equation 4x – 5y = 24. The correct option is A and D.
The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given expression is 4x – 5y = 24. We will check the points as:-
4x – 5y = 24
Use:- (-9,-12)
( 4 x -9 ) - ( 5 x 12) = 24
-36 - 60 = 24
24 = 24
4x – 5y = 24
Use:- (6,0)
( 4 x 6 ) - 0 = 24
24 = 24
Therefore, the ordered pairs are (-9,-12) and (6,0) satisfying the equation 4x – 5y = 24. The correct option is A and D.
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The two third of the given number,
⇒ (2/3)x120 = 80
The given number is,
120
We have to find its two third:
To find this,
First multiply this number wit 2 then,
2x120 =240
Then divide the number by 3
240/3 = 80
Thus two third of the given number can be written as,
(2/3)x120
= (2x120)/3
= 240/3
= 80
Hence,
⇒ (2/3)x120 = 80
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