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Pavel [41]
3 years ago
5

Simplify 6x+(- 9)-9(5x+5)+x

Mathematics
1 answer:
lubasha [3.4K]3 years ago
6 0

Answer:

-38x-54

Step-by-step explanation:

6x-9-9(5x+5)+x

6x-9-45x-45+x

6x-45x+x-9-45

-39x+x-9-45

-38x-9-45

-38x-54

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Answer:

t=4h

Steps below

Step-by-step explanation:

We know:

speed of boat with respect to earth:  13  km

speed of stream with respect to earth:  4 km

13 km/h + 4 km/h = 17 km/h The time to travel 68 km with this speed is thus t = 68 km 17 km h = 4 h

<em><u>Hope this helps.</u></em>

4 0
3 years ago
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Step-by-step explanation:

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4 0
2 years ago
100% of what number is 61
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3 0
3 years ago
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