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estimate the quotient of 250.311 ÷ 4.65. round the dividend and divisor to the nearest whole number.

After round-off to the nearest whole number, it would be:
250.311 → 250
4.65      → 5

So, now we need to divide 250 /5 
It would be equal to 50

So, your final answer is 50

Hope this helps!

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.