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Vladimir [108]
3 years ago
6

Could I please get some help with these three questions (17, 19, 21)

Mathematics
2 answers:
Natalka [10]3 years ago
7 0
The correct answers are -14 ≠ 16, 2 = 2 and then 2 ≠ 1 
Good Luck!! :)
sladkih [1.3K]3 years ago
3 0
Simply substitute the given number for all the equations.

17) 5b + 1 = 16 where b is -3

5(-3) + 1 = 16

-15 + 1 = 16

-14 ≠ 16

So, the given number is not a solution.


19) 2 = 10 - 4y where y is 2

2 = 10 - 4(2)

2 = 10 - 8

2 = 2

The given number is a solution.


21) -6b + 5 = 1 where b is 0.5

-6(0.5) + 5 = 1

-3 + 5 = 1

2 ≠ 1

The given number is not a solution.
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