Answer:
15
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
We can notice that the balance beam has in one side 7 balls and in the other one 5 balls and a square
The balance beam is balenced
Let x be the square mass
- x+5 = 7 substract five from each side
- x+5-5 = 7-5
- x = 2
The solution is 2
C fits perfectly what we prooved
There are two such numbers.
One of them is 2 + 9.5 = 11.5.
The other one is 2 - 9.5 = -7.5.
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If we consider "9.5 units from 2" to be 9.5 units in the positive direction, then the appropriate choice is 11.5.
The answer would be B because it gose through both points.
