Y and x have a proportional relationship, and y = 12 when x = 5. What is the value of y when x = 8?

y and x have a proportional relationship, and y = 7 when x = 2. What is the value of x

when y = 21?

Which equation represents a proportional relationship?

y=12x

y=2 (x+13)

y=-3x+2

y = 3x

Question

Mathematics

Kayleigh Ballard

28 May, 13:20

Y and x have a proportional relationship, and y = 12 when x = 5. What is the value of y when x = 8?

y and x have a proportional relationship, and y = 7 when x = 2. What is the value of x

when y = 21?

Which equation represents a proportional relationship?

y=12x

y=2 (x+13)

y=-3x+2

y = 3x

+4

Answers (1)

Know the Answer?

Amelia Bauer · Answer 1

1st question: y=19.2. because x=8 when x multiply by 1.6, so y should multiply by 1.6 to get 19.2

2nd question: x=6. Because y multiply by 3 is 21, so x need to multiply by 3 to get 6.

Sorry I don’t know the third question ...

Y and x have a proportional relationship, and y = 12 when x = 5. What is the value of y when x = 8?y and x have a proportional relationship, and y = 7 when x = 2. What is the value of xwhen y = 21?Which equation represents a proportional relationship?y=12xy=2 (x+13)y=-3x+2y = 3x

Y and x have a proportional relationship, and y = 12 when x = 5. What is the value of y when x = 8?

y and x have a proportional relationship, and y = 7 when x = 2. What is the value of x

when y = 21?

Which equation represents a proportional relationship?

y=12x

y=2 (x+13)

y=-3x+2

y = 3x