Answer:
(i) values of x and y that will make 3x - 2y equal zero is when x = 6 and y = 9.
ii) The greatest possible value of 3x - 2y will be when x = 10 and y = 0.
iii) The least possible value of 3x - 2y will be when x = 0 and y = 10.
Step by step explanations:
(i) values of x and y will make 3x - 2y equal zero is x = 6 and y = 9.
3x - 2y = 0
3(6) - 2y = 0
18 = 2y
y = 9.
ii) The greatest possible value of 3x - 2y will be when x = 10 and y = 0.
3x -2y
=3(10) - 2(0)
= 30-0
= 30
iii) The least possible value of 3x - 2y will be when x = 0 and y = 10.
3x -2y
=3(0) - 2(10)
= 0-20
= -20
Kindly complete the question b.
B) Find the value of 5(a - 4b) when a = -7 and b = what?