If anda and c are doubled, what happens to the value of d ?

If

anda and c are doubled, what happens to the value of d ?
A . The value of d remains the same.
B . The value of d is doubled.
C . The value of d is four times greater.
D . The value of d is halved.
E . The value of d is four times smaller.

View Answer

Answer: A

Explanation:

If a and c are doubled, the fraction on the left side of the equation becomes

. The fraction has been multiplied by 2/2 which is equal to 1.

Multiplying a fraction by 1 does not change its value:

.

The value of d remains the same.