3. If a= 3.1 and b= 7.3, correct to 1 decimal place, find the largest possible value of a+b

Ответ:

To find the largest possible value of a+b, we should round each number to the nearest tenth (one decimal place).

a rounded to one decimal place is 3.1, since there is no rounding necessary.

b rounded to one decimal place is 7.3, since the digit in the hundredth's place is 5 or greater, so we round up the digit in the tenth's place.

Therefore, a+b, rounded to one decimal place, is:

3.1 + 7.3 = 10.4

So the largest possible value of a+b, correct to 1 decimal place, is 10.4.

Пошаговое объяснение: