Question

PLEASE HELP ASAP!!!

Complete the two-column proof.


Given: x/5 + 9 = 11


Prove: x = 10

x/5 + 9 = 11 a.__________

x/5 = 2 b.__________

x = 10 c.__________


A) a. Given

b. Subtraction Property of Equality

c. Division Property of Equality

B) a. Given

b. Subtraction Property of Equality

c. Multiplication Property of Equality

C) a. Given

b. Addition Property of Equality

c. Multiplication Property of Equality

D) a. Given

b. Addition Property of Equality

c. Division Property of Equality

Answer 1

Answer:b

Explanation:

Answer 2

1) Given equation: x/5 + 9 = 11

2) Subtract from both sides of the equation 9 (use Subtraction Property of Equality):

x/5+9-9=11-9,

x/5=2.

3) Unknown variable is dividend, 5 is divisor and 2 is quotient. To find unknown dividend you should find the product of divisor and quotient or in another words use the Multiplication Property of Equality:

x=5·2,

x=10.

These three consecutive steps show you that correct choice is B.

Answer: correct choice is B.