Select the proper inverse operation to check the answer to 14 + 17 = 31. a. 31 ÷ 17 = 14 b. 31 − 17 = 14 c. 14 − 17 = 31 d. 31 × 14 = 17

B. 31 − 17 = 14

Step-by-step explanation:

Given sum:  14+17=31

We know that the proper inverse operation to check the answer to a+b=c is

c-a=b or c-b=a [because subtraction operation is inverse of addition operation]

Therefore, for the given sum, the proper inverse operation to check the answer to 14+17=31 is 31 − 17 = 14 or 31 - 14 = 17

Therefore, B,. is the right answer.

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

answer: $34.31

step-by-step explanation:

$11.99 x 3 = $35.97

$35.97 - 10% = $32.37

$32.37 + 6% = $34.31