Arman, babken, and cecilia decided to compete in a 100m run. when arman crossed the finish line, babken was 10m behind him. when babken crossed the finish line, cecilia was 10m behind him. how far was cecilia behind arman when he crossed the finish line?

19 meters

Step-by-step explanation:

When Arman finished, Babken is 10 meters behind. So, Babken has 10 meters left.

Ex: Babken has 10 meters left, Cecilia is 9 meters behind.

So, the answer is 10+9=19.

19 meters.

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square