化简 0.75sqrt(400)+0.25sqrt(900)

解答

化简

0.75 400 + 0.25 900

22.5

求解步骤

0.75 400 + 0.25 900

0.75 400 = 15

0.25 900 = 7.5

= 15 + 7.5

15 + 7.5 = 22.5

= 22.5

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