Answer:
31
Step-by-step explanation:
x, x+1, x+2
x + x + 1 +x + 2 = 90
3x + 3 = 90
-3 -3
3x = 87
/3 /3
x = 29
29 + 2 = 31
Answer:
4 45/100 Keep simplifying it. You can do it!
Step-by-step explanation:
4 is the whole. 45 is out of 100
If the polygons are similar then the sides are in proportion.

Therefore we have the equations:


From the given, we expressed the time that each of the team members ran in mathematical expression.
Reggie = 57.12 seconds
Alvin = 57.12 + 2.45 seconds = 59.57 seconds
Jose = 57.12 - 3.81 seconds = 53.31 seconds
We then sum up all the time we calculate to determine the total time for the team. The answer is therefore 170 seconds.
The answer is D. 9(y+3) and 27 + 9y
You would distribute the 9 to both the 3 and the y.