determine whether the following numbers are in proportion or not. 100,150,200,250

Question

determine whether the following numbers are in proportion or not. 100,150,200,250​

Adeline · Answer

Answer:   100 : 150 :: 200 : 250   = 100 : 150 = 100 ÷ 10 = 10 and 150 ÷ 10 = 15   = 200 : 250 = 200 ÷ 10 = 20 and 250÷ 10  25        = 10: 15 :: 20:25       = No, they are not in proportion

Evelyn

In the repeating decimal 0.1276988………, which digit is in the 5267th place to right of the decimal point?

Expand the question :-
(2x – y – z)^2

answer please

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