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DPAKOSHKA
DPAKOSHKA
06.10.2020 20:09 •  Математика

Вавтопарке было 180 машин из них 81 машина грузовая. какой процент всех машин состовляли грузовые

👇
Ответ:
jsjdjznnxnx
jsjdjznnxnx
06.10.2020
81 : 180 = 0,45 = 45% - составляют грузовые машины.

Или :

180 - 100%
81 - х%

х = 81 * 100 : 180
х = 45% - ответ.
4,8(91 оценок)
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Ответ:
astasevbogdanp08dn2
astasevbogdanp08dn2
06.10.2020

Пошаговое объяснение:

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4,7(20 оценок)
Ответ:
Howcould
Howcould
06.10.2020

Пошаговое объяснение:

9)

(30088-27028):30+29*31=1001

1)

_30088

27028

3060

2)

_3060 |__30

30 |102

_60

60

0

3)

29*31=20*31+9*31=620+279=899

4)

102+899=1001

10) магазины

1 магазин

1)4*190=760(руб) стоят 4 полотенца

2)760+950=1710 (руб) стоят полотенца и противень

3)5*90=450 (руб) стоят 5 стаканов

4)1710+450=2160 (руб) стоят 5 стаканов 4 полотенца и противень

5)2160+500=2660 (руб) вся покупка первого магазина

2магазин

1)220*4=880 (руб) стоят 4 полотенца

2)880+940=1820 (руб) стоят 4 полотенца и противень

3)5*80=400 (руб) стоят 5 стаканов

4)400+1820=2220(руб) стоят 4 полотенца, противень, 5 стаканов

5)2220+470=2690(руб) вся покупка второго магазина

ответ: 2660 рублей покупка первого магазина. Дешевле.

11) города

Согласно графику, город Пекин 4 по численности населения

4,4(8 оценок)
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