Question

which equation has the following characteristics y varies directly with X and Y equals 30 when x equals 3
Y = 27 + x
Y = 10x
Y = 33 - x
Y = 30x

Answer 1

@ajspeller @mathstudent55 @Nnesha

Answer 2

When x = 3 y would equal 30
What expression satisfy that fact

Answer 3

y = 30x? @Will.H

Answer 4

No what satisfys that fact is either expression A or C
When x = 3
Y would equal 30 in both expressions

Answer 5

Now y and x varies directly. Which would satisfys that fact? A or C and how do you know

Answer 6

c because 33 - 3 is 30 so it would work both ways

Answer 7

@Will.H

Answer 8

Right

Answer 9

thanks

Answer 10

the correct answer would be Y = 33 - x