Select the statement that best justifies the conclusion based on the given information.

If x + y = z and x = y, then the conclusion is x + x = z.

A. addition property of equality

B. additive inverse

C. closure

D. substitution

How to solve the equation 3/7 * 49=x

What ratio is between the relationship for 32:12

Mrs. Atkins pays $1,800 for a new refrigerator, washer, and a dryer. The refrigerator costs $250 more than the washer. The dryer costs as half as much as the washer. How much does the washer cost?

At the movies Liz eats 1/4 of a box of popcorn her friend kyra eats two times as much popcorn as Liz eats how much of a box of popcorn does kyra eat

Keisha and her friends visit the concession stand at a basketball game. The stand charges $2 for a hotdog and $1 for a drink. The friends buy a total of 8 items for $11.

Convert 6418 kilograms to tons?

Michael drove from Orlando to Jacksonville in 6 2/3 hours. The next day he drove from Jacksonville to Savannah in 3 3/5 hours. What was Michael's total driving time from Orlando to Savannah?

You have $3000 to use for training your employees each hour of training cost $40 per employee plus a one time $200 fee how many hours of training can you purchase and how many hours of training will each of your employees received

How do you divide big numbers? like for example, 2,673 : 486?

a student was 48 inches tall in 5th grade. now, the student measures 60 inches tall on 8th grade. what is the percent increase of the studet's height