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人気のある >

The reciprocal of five less than a number is 4 times the reciprocal of twice the number. Find the number.

解

The reciprocal of five less than a number is 4 times the reciprocal of twice the number. Find the number.

解

The number : 10

解答ステップ

Represent the number with

x

A.T.Q.:

\frac{1}{x - 5} = 4 \cdot \frac{1}{2 x}

x

を解く

\frac{1}{x - 5} = 4 \cdot \frac{1}{2 x} : x = 10

The number : 10

人気の例

The sum of 2 times a number and 6 is 8.twice the 差 of a number and 6 is at most 22 Joey makes quarterly deposits of 750 into his IRA. If his IRA pays 2% compounded quarterly, how much is in the account after 20 years?the sum of a number and its square is 72 You randomly select one card from a 52-card deck. Find the probability of selecting a red ten or a red jack.