Question

the number is 89.783 rounded off to the nearest tenth is equal to which of the following?
a.90.0,
b.89.78,
c.89.7
d.89.8
e.89.9
plss explain this solution​

Answer 1

Answer:

The answer is option a. 90.0

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Answer 2

Answer: The number 89.783 rounded off to the nearest tenth is 89.8 which is option d.

Step-by-step explanation:

Rounding off means a number is made simpler by keeping its value intact but closer to the next number. It is done for whole numbers, and for decimals at various places of hundreds, tens, tenths, etc. Rounding off numbers is done to preserve the significant figures. The number of significant figures in a result is simply the number of figures that are known with some degree of reliability.

When we round off a number to the nearest tenth, we look at the digit in the hundredths place (the third decimal place). If that digit is 5 or greater, we round up the digit in the tenths place (the second decimal place). If that digit is less than 5, we leave the digit in the tenths place unchanged.

In this case, the number is 89.783. The digit in the hundredths place is 7, which is greater than 5. So, we round up the digit in the tenths place which is 8 to 9.

So the number 89.783 rounded off to the nearest tenth is 89.8 which is option d.

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