Answer:
Let the original number be x.
Thus,
So, The original number is 12.
Step-by-step explanation:
I think the first equation is the correct answer
After calculating he can buy 11 laptops and 19 tablets
Answer:
51
Step-by-step explanation:
4x12-3x3+12
48-9+12=51
Answer:
.5 m
Step-by-step explanation:
You can use maximum possible error to calculate absolute error
Maximum possible error of is half the unit of measure
This means it is ±0.5 meters
In this case, you find the place value the measurement 10 meters is rounded to .This measurement was measured to the nearest meter, thus the measuring unit is 1 meter.
Here you use the maximum possible error as the absolute error.
This means the measurement is 10 ± .5
