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KolyanKek
@KolyanKek
August 2022
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Помогите мне очень нужно
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oksik1970
▪1) 8,5×48 - (17,244+16,859)÷6,7 = 408 - 34,103÷6,7 = 408 - 5,09 = 402,91;
_____________
▪2.а) 16 8/13 + (у + 5/8) = 19 8/13
16 8/13 + у + 5/8 = 19 8/13
у = 19 8/13 - 16 8/13 - 5/8 = 3 - 5/8 = 2 3/8
у = 2 целых 3/8
_____________
▪2.б) (5х - 1,3) × 25,4 = 52,07
5х - 1,3 = 52,07 ÷ 25,4
5х - 1,3 = 2,05
5х = 2,05 + 1,3
5х = 3,35
х = 3,35 ÷ 5
х = 0,67
_____________
▪4) 40% от 75 = 0,4 × 75 = 30
56% от 60 = 0,56 × 60 = 33,6
33,6 - 30 = 3,6
30 < 33,6 на 3,6, соответственно:
40% < 56% на 3,6
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Answers & Comments
_____________
▪2.а) 16 8/13 + (у + 5/8) = 19 8/13
16 8/13 + у + 5/8 = 19 8/13
у = 19 8/13 - 16 8/13 - 5/8 = 3 - 5/8 = 2 3/8
у = 2 целых 3/8
_____________
▪2.б) (5х - 1,3) × 25,4 = 52,07
5х - 1,3 = 52,07 ÷ 25,4
5х - 1,3 = 2,05
5х = 2,05 + 1,3
5х = 3,35
х = 3,35 ÷ 5
х = 0,67
_____________
▪4) 40% от 75 = 0,4 × 75 = 30
56% от 60 = 0,56 × 60 = 33,6
33,6 - 30 = 3,6
30 < 33,6 на 3,6, соответственно:
40% < 56% на 3,6