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3 years ago

Translate this formula into an english sentence using this "dictionary":

1 answer:

6 0

Answer: If the solution's boiling point drops because salt is added to the soltuiton, then the reason the solution boils sooner is the addition of salt to the solution

Step-by-step explanation:

The re are two cause - consequence relations inside an other one.

I use 3 different cause - consequence connectors not to mix them up.

A --> D equals “ D because A “

A --> S equals “ the reason S happens is A “

(A --> D) --> (A --> S) Equals “ if (A --> D) then (A --> S) “

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Can y'all help me with this?

Kazeer [188]

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3 years ago

The half-life of a certain radioactive substance is 45 days. There are 6.2 grams present initially. On what day

kvasek [131]

Answer:

There will be less than 1 gram of the radioactive substance remaining by the elapsing of 118 days

Step-by-step explanation:

The given parameters are;

The half life of the radioactive substance = 45 days

The mass of the substance initially present = 6.2 grams

The expression for evaluating the half life is given as follows;

$N(t) = N_0 \left (\dfrac{1}{2} \right )^{\dfrac{t}{t_{1/2}}$

Where;

N(t) = The amount of the substance left after a given time period = 1 gram

N₀ = The initial amount of the radioactive substance = 6.2 grams

$t_{1/2}$ = The half life of the radioactive substance = 45 days

Substituting the values gives;

$1 = 6.2 \left (\dfrac{1}{2} \right )^{\dfrac{t}{45}$

$\dfrac{1}{6.2} = \left (\dfrac{1}{2} \right )^{\dfrac{t}{45}$

$ln\left (\dfrac{1}{6.2} \right ) = {\dfrac{t}{45} \times ln \left (\dfrac{1}{2} \right )$

$t = 45 \times \dfrac{ln\left (\dfrac{1}{6.2} \right ) }{ln \left (\dfrac{1}{2} \right )} \approx 118.45 \ days$

The time that it takes for the mass of the radioactive substance to remain 1 g ≈ 118.45 days

Therefore, there will be less than 1 gram of the radioactive substance remaining by the elapsing of 118 days.

3 0

3 years ago

NEED ANSWER ASAP!!!

ExtremeBDS [4]

Answer:

a=4+2/x <-- 2 over x its a fraction

Step-by-step explanation:

5 0

4 years ago

7233 divided by 164 equals

stepan [7]

7233/164=44.10
..........

7 0

3 years ago

Please this is urgent!! Solve for x: a(x-b)+bx+c=a+b

Arada [10]

X= a+b+c+bx/a(x-b) but I’m not completely sure

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3 years ago