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STatiana [176]
2 years ago
8

Please help me ASAP. Many Thanks

Mathematics
1 answer:
tresset_1 [31]2 years ago
5 0
You have to make the fraction into an integer. the simplest version of a ratio involves the smallest possible integers. therefore, 5:2.5 will equal 10:5 (you multiply both sides by 2). 10:5 cancels down to 2:1. hope this helped :)
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lozanna [386]
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Flight time = 2* ascendent time

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sin(45) = Voy / Vo => Voy = Vosin(45) = 25.5 m/s * (√2) / 2 = 18.03 m/s

Vy = Voy - gt = 0  => Voy = gt = t = Voy / g

Use g = 10 m/s^ (it is an aproximation, because the actual value is about 9.81 m/s^2 depending on the latitud)

t = 18.03 m/s / 10 m/s^2 = 1.83 s

This is the ascendant time going upward.

The flight time is 2*1.83 = 3.66 s

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c) The time the ballon will be in the air was calculated in the part B, it is 18.03 s
5 0
3 years ago
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Mrrafil [7]

3(x-7)+8=-20

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3x-13+13= -20+13

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Answer : x= -7/3 or in mixed number : -2 1/3

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Answer:

i think its 30

Step-by-step explanation:

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Hope this will help you!

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