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rusak2 [61]
3 years ago
7

Explain this please

Mathematics
1 answer:
Maksim231197 [3]3 years ago
7 0
There are 3 system of equations
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2. A fair dice is rolled. What is the probability that a number divisible by 3 is rolled?
Anni [7]

Answer: 2

Step-by-step explanation:

A dice has 6 numbers on it, 1,2,3,4,5, and 6.

how many pairs of 3 can you make?

(1   2   3)   (4   5   6)

There are 2 pairs, so your answer is 2

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3 years ago
In the problem 3r=9/10 how do you solve this to find out what r is
aniked [119]
One way to solve this problem is by:
First multiply both sides by 10
30r=9
Now divide by 30
r=0.3 Final Answer
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3 years ago
What is the solution to the radical equation<br> 3 - 8
solmaris [256]
Duduyxyxtzxggchj k know
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3 years ago
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How long will it take to have R30 000 for a trip to Europe if I invest R20 000 now at 15% per year, compounded quarterly?
maw [93]

<span>Compound  interest  formula</span>

A=P(1+ \frac{r}{n} )^{nt}

 

Where

<span>
A= Future value
P = the Principal (the initial amount of money) 
r = annual interest rate</span>

t = time

<span>n= number of times compounded in one t






Remark
----------------------------------------------------------------------------------

r is generally a percentage like 3%, 7% etc and are applied in the formula as 0.03, 0.07..., 

the interest is compounded generally annually (n=1), quarterly (n=4), monthly (n=12), etc...

t is in years,


In our problem:

</span>

A= 30 000

P =20 000

r = 15%=0.15

time = t = ?

n= 4

applying the formula:

A=P(1+ \frac{r}{n} )^{nt}\\\\30,000=20,000(1+ \frac{0.15}{4} )^{4t}\\\\ \displaystyle{\frac{30,000}{20,000} =(1.0375)^{4t}

\displaystyle{ 1.5={(1.0375^4)}^t\\\\

1.5=1.159^t\\\\ \displaystyle { t=log_{1.159}1.5=2.75

75% of 12 months is 3/4 of 12 months, which is 9 months

Answer: 2 years, 9 months

3 0
3 years ago
Use the distributive property to simplify the expression 5 ( − 1 x − 6 + 6 y )
expeople1 [14]

Answer:

the answer should be -5x - 30 + 30 y

3 0
3 years ago
Read 2 more answers
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