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Toady8432
19.09.2019 •
Mathematics
What is the solution of the system of equations? y = –5x 6 y = –3x – 4 a. (–1.25, 12.25) b. (–19, 5) c. (–1, –1) d. (5, –19)
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Ответ:
The solution of the system of equation is:
(5,-19)
Hence, option D is correct.
Step-by-step explanation:
We are given system of linear equations as:
y = -5x+ 6
i.e. 5x+y=6(1)
and y = -3x-4
i.e. 3x+y= -4(2)
We will us the method of elimination to solve the following system of equation.
We subtract equation (2) from equation (1) to get:
2x=10
x=5 (on dividing both side by 5)
now on putting the value of x in equation (1) we get the value of y as:
y= -19
Hence, the solution of the system of equation is:
(5,-19)
Hence, option D is correct.
Ответ:
4,000 pounds = 2 tons
Step-by-step explanation:
2 tons is equal to 2,000 pounds, so 2 tons equal 4,000 pounds.
Hope this helps!