помогите решить -3.6+4.8*(4 5\6-5 3\4). Created by goobee657. matematika-ru

-3,6 + 4,8 * (4 - 5 ) = -81. 4 - 5 = 4 - 5 = - (5 - 4) = - ( 4 - 4 ) = - = - 2. * (-) = - = - = - = - 4,43. - 3,6 + ( - 4,4) = - 3,6 - 4,4 = -8

помогите решить -3.6+4.8*(4 5\6-5 3\4)...

goobee657 @goobee657

July 2022 1 5 Report

помогите решить -3.6+4.8*(4 5\6-5 3\4)

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starnadeika

-3,6 + 4,8 * (4 $\frac{5}{6}$ - 5 $\frac{3}{4}$ ) = -8

1. 4 $\frac{5}{6}$ - 5 $\frac{3}{4}$ = 4 $\frac{20}{24}$ - 5 $\frac{18}{24}$ = - (5 $\frac{18}{24}$ - 4 $\frac{20}{24}$ ) = - ( 4 $\frac{42}{24}$ - 4 $\frac{20}{24}$ ) = - $\frac{22}{24}$ = - $\frac{11}{12}$

2. $\frac{48}{10}$ * (- $\frac{11}{12}$ ) = - $\frac{48 * 11}{10 * 12}$ = - $\frac{4 * 11}{10}$ = - $\frac{44}{10}$ = - 4,4

3. - 3,6 + ( - 4,4) = - 3,6 - 4,4 = -8

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dlina pryamougolnika 24 sm a shirina sostavlyaet 75 dliny najdite ploshad i pe

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