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3 years ago

What is 2/5% as an equivalent fraction?

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

5 0

4/10 is the answer to 2/5%

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Write 2. 2/3 as an improper fraction

Vesna [10]

$2\frac{2}{3}=\frac{2\cdot3+2}{3}=\frac{6+2}{3}=\frac{8}{3}$

6 0

2 years ago

Read 2 more answers

Can someone help me on this ASAP? This is a PRACTICE test and i already know the answer which is A.

Over [174]

Answer:

122 1/4

Step-by-step explanation:

Hope this helps! :)

(12x12) 12x $\frac{2}{3\\}$ x12) / (3/2 x3/2)

PEMDAS = parathesis exponents multiplictation division add subtract.

12x12=24

3/2x3/2=9/4

12x2/3=8x12=96

so 24+96=120

9/4 can be like 4x2=8 so i remaing

120+2=122 1/4?

5 0

1 year ago

How many solutions does the system have?

Hunter-Best [27]

You ca go to tiger math and put in any equation and it will give you the answer to any of them.

7 0

3 years ago

Diamond deposited $300 in a savings account that has a 2% interest rate per

Alexxandr [17]

Answer:

After 1 year: $306

After 2 years: $312.12

Step-by-step explanation:

Use the formula 300 x $1.02^{t}$

t = no of years

So, Deposit x interest rat $e^{years}$

4 0

3 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

5 months ago