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Harman [31]
3 years ago
10

6/8 ÷ 2/3 pleas help me​

Mathematics
1 answer:
butalik [34]3 years ago
7 0

Answer:

\frac{6}{8}  \div  \frac{2}{3}

Simplify,

\frac{6}{8}    =  \frac{3}{4}

So now,

\frac{3}{4}  \div  \frac{2}{3}  \\  =  \frac{3}{4}  \times  \frac{3}{2} \\  =  \frac{3 \times 3}{4 \times 2}  \\  =  \frac{9}{8}  \\  = 1.125

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Step-by-step explanation:

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Question 1 of 10
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2 years ago
Situation:A researcher in North America discoversa fossile that contains 65% of its originalamount of C-14..-ktN=NoeNo inital am
zheka24 [161]

SOLUTION

We have been given the equation of the decay as

\begin{gathered} N=N_0e^{-kt} \\ where\text{ } \\ N_0=initial\text{ amount of C-14 at time t} \\ N=amount\text{ of C-14 at time t = 65\% of N}_0=0.65N_0 \\ k=0.0001 \\ t=time\text{ in years = ?} \end{gathered}

So we are looking for the time

Plugging the values into the equation, we have

\begin{gathered} N=N_0e^{-kt} \\ 0.65N_0=N_0e^{-0.0001t} \\ e^{-0.0001t}=\frac{0.65N_0}{N_0} \\ e^{-0.0001t}=0.65 \end{gathered}

Taking Ln of both sides, we have

\begin{gathered} ln(e^{-0.000t})=ln(0.65) \\ -0.0001t=ln(0.65) \\ t=\frac{ln(0.65)}{-0.0001} \\ t=4307.82916 \end{gathered}

Hence the answer is 4308 to the nearest year

8 0
11 months ago
Use the formula aequals upper p left parenthesis 1 plus r right parenthesis superscript t to find the rate r at which ​$3000 com
hichkok12 [17]
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7 0
3 years ago
Read 2 more answers
Frank invested $30,000 at 4% simple interest. How much interest will he earn each year?
Oduvanchick [21]

Answer:

$1200 interest

Step-by-step explanation:

$30,000 divided by 100 = 300 , 300 multipled by 4 = 1200 , thats how to find what 4% would be

3 0
2 years ago
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