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3 years ago

What is 3/10+1/10 in simplest

Mathematics

2 answers:

Tcecarenko [31]3 years ago

7 0

Answer:

The answer is 4÷20

Step-by-step explanation:

The equation is 3÷10+1÷10

What we need to do is collect the like terms and group them properly!

The like terms we have are (+3) (+1), (÷10), (÷10)

We keep the symbols as they are in order for this to be accurate.

3+1=4

10+10=20

Therefore we have [(+)4][÷20]

Which is the same as 4÷20

Nat2105 [25]3 years ago

5 0

Answer: 2/5

Step-by-step explanation:

Since 3/10 and 1/10 already have a common denominator, all you have to do is add straight across, which equals 4/10, and then simplify the fraction by dividing the numerator and denominator by 2 to get 2/5.

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Question 1 ( point) A 64g sample of Germanium-66 is left undisturbed for 12.5 hours. At the end of that period, only 2.0g remain

iVinArrow [24]

Answer:

2.5 half-lives

Step-by-step explanation:

Find $t_{h}$ in $N(t)=N_{0}e^{-kt}$ given $N(t) = 2, N_{0} =64,t=\frac{25}{2}$

$N(t)$ is the amount after the time $t$ , $N_0$ `is the initial amount, $t_{h}$ is the half-life

We know that after half-life there will be twice less the initial quantity:

$N(t_{h})=\frac{N_{0} }{2}=N_{0}e^{kt_{h} }$ .

Simplifying gives $\frac{1}{2} =e^{-kt_h} or k = -\frac{In(\frac{1}{2}) }{t_{h} } .$

Plugging this into the initial equation, we obtain that $N(t)=N_{0}e^\frac{In(\frac{1}{2}) }{t_{h} }$ or $N(t)= N_{0} (\frac{1}{2})^\frac{t}{t_h}.$

Finally, just plug in the given values and find the unknown one.

From $2=64(\frac{1}{2})^\frac{\frac{25}{2} }{t_h}$ , we have that $t_h$ = $\frac{25 In (2)}{2 In (32)\\}$

So you should get: $t_{h} =\frac{25 In (2)}{2 In (32)\\}=2.5.$

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5 0

3 years ago

Read 2 more answers

How can i relate decimals to a place value chart

Nikolay [14]

Well ummm for example .9746 the 9 is in the tenths place the 7 is in the hundredths place the 4 is in the thousandths place the 6 is in the ten thousandths place

3 0

3 years ago

What is the area of the isosceles triangle shown?

ra1l [238]

Answer:

672 meters squared

Step-by-step explanation:

Area of Triangle: b*h*1/2

The isosceles triangle's height, splits the base in half.