The decimal is 0.4what does 10x equal

0.4 × 10 ≈ 4.0

the reason is, normally if any decimal no. is multiplied by 10 , the decimal point will move one step towards the right

well this is how i was taught in schools

i hope the ans is right

hope this hepls :)

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.

answer: idk

step-by-step explanation: