I pretty sure all of them are right i study this a couple years ago
Answer:
Sometimes they represents the same value
Step-by-step explanation:
the expression x-3 and y-3 represent the same value.
yes sometimes the expression x-3 and y-3 represent the same value.
the expression x-3 and expression y-3 represents the same value only when x=y (that is only when x and y values are same)
For example
when x=5 and y=5
then expression x-3 becomes 5-3= 2
the expression y-3 becomes 5-3=2
so both the expression give same value when x=y
Sometimes they represents the same value
B is the answer to your question
114. This would make 112 the smaller one
114
+112
-------
226
Answer:
When did Mary and Wyatt meet? 0.5 minutes later
How far from point Q did they meet? 3.5 km
Step-by-step explanation:
Mary’s motion is represented by d = 8t----(1)
Wyatt’s motion is represented by 2d + 14t = 15----(2)
We solve for d in equation (2) to get:d=7.5-7t----(3)
We equate equation (1) and (3) to get:
We now solve for t to get:
Now put t=0.5 into equation (1) to get d=0.5*8=4
This means they met 4 km from point P.
Therefore they meet 7.5-4=3.5km from point Q