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3 years ago

Solve 2/5 + 1/4 + 1/10=

Mathematics

2 answers:

evablogger [386]3 years ago

4 0

Answer:

your answer is 3/4

Step-by-step explanation:

I know this because I'm smart, enjoy

Scilla [17]3 years ago

4 0

Answer:

The answer is 1/4 or 0.75

Step-by-step explanation:

First we turn each fraction with a equal denominator for all of them.

2/5 = 8/20

1/4 = 5/20

1/10 = 2/20

Next we add them all up together.

8/20 + 5/20 + 2/20 =

13/20 + 2/20 = 15/20

15/20 = 1/4

So, the answer is 1/4.

Hope this helps! :)

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2 years ago

Suppose an astronaut can jump vertically with an initial velocity of 5 m/s. The time that it takes him to touch the ground is gi

Vitek1552 [10]

Answer:

$t=1.020s$

Step-by-step explanation:

Given Equation:

$5t-0.5at^{2} =0$

Actually the given equation is the 2nd equation of motion

i.e. $S =V_{i} t+0.5at^{2}$

where $S=0$ because the astronaut jumps on the earth

and initial velocity $V_{i}=5$

to find time $t$ , put the given value of $a=9.8m/s^{2}$ in the given equation, we get

$5t-0.5(9.8)t^{2} =0\\t(5-4.9t)=0\\ \ dividing\ both\ sides\ by\ t\ we \ get\\ 5-4.9t=0\\4.9t=5\\t=\frac{5}{4.9}\\ t=1.020s$

it will take $t=1.020s$ to reach the ground if he jumps on the Earth

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2 years ago

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mash [69]

Answer:

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Step-by-step explanation:

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Answer:

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