Heather wanted to read 15 books before the end of summer. she has already read 6 books. which equation could be used to find how many more books heather needs to read to reach her goal

15-6

Step-by-step explanation:

she wanted to read 15 and she's already read 6 so take 6 away from the amount you originally needed and you get 9 left to read

9 books left to read using subtraction

Step-by-step explanation:

You can use subtraction to take away 6 books from the ultimate goal of 15 to realize how many books are left that she has to read.

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: b.48 for

step-by-step explanation: