Step-by-step Answer:
What is the solution to the system of equations?
y = –3x – 2 ..............(1)
5x + 2y = 15..............(2)
Substitute (1) in (2) to give
5x + 2(-3x-2) = 15
5x-6x-4 = 15
-x-4=15
solve for x:
-4-15 = x
x=-19
Now substitute x=-19 into equation (1)
y = -3x-2 = 57-2 = 55
Therefore the solution is (-19, 55)
Answer:
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Step-by-step explanation:
Answer:
Last option (bottom right)
Step-by-step explanation:
The scientific notation for 0.002 is
(you move the decimal 3 to the right to get 2)
multiply the number of mustard seeds with this and you get 80. In scientific notation it is
(move the decimal 1 to the left to get 8.0)
I think it’s 4
0+8x=23+2x
6x=23
x=3,8333