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ilovefood2064
11.07.2019 •
Mathematics
Using the rule y = 3x + 4, find the value of y when x is 2. a) 9 b) 10 c) 11 d) 12 using the rule y = 8x + 5, find the value of y when x is 6. a) 19 b) 43 c) 50 d) 53 if y = 3x + 5, what is the value of y when x = 12? a) 17 b) 20 c) 31 d) 41 use substitution to determine whether the value for x is a solution for the equation. 3x + 10 = 25 x = 5 5x − 10 = 25 x = 6 6x − 18 = 6 x = 4 4x + 12 = 40 x = 7 8x + 12 = 28 x = 3
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Ответ:
option B
option D
option D
Correct
incorrect
correct
correct
incorrect
Step-by-step explanation:
1) y = 3x + 4 with x = 2
y = 3(2) + 4= 10 option B
2) y = 8x + 5 with x = 6
y = 8(6) + 5= 53 option D
3) y = 3x + 5 with x = 12
y = 3(12) + 5= 41 option D
Use substitution to determine whether the value for x is a solution for the equation
3x + 10 = 25 With x = 5
3(5) + 10 = 25 it is correct
5x − 10 = 25 With x = 6
5(6) − 10 = 25 it is not correct
6x − 18 = 6 With x = 4
6(4) − 18 = 6 it is correct
4x + 12 = 40 With x = 7
4(7) + 12 = 40 it is correct
8x + 12 = 28 With x = 3
8(3) + 12 = 28 it is not correct
Ответ:
2 and 4 is correct answer on edg 2020
Step-by-step explanation: