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3 years ago

Please help me on this!

Mathematics

1 answer:

Blizzard [7]3 years ago

5 0

1,2, and 6 are all no’s but everything else is yes I believe

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Alex wants to have $2,500 in his bank account after 2 years. If the account earns 5% interest compunded 2 times per year, how mu

natka813 [3]

$A=P(1+ \frac{r}{n})^{nt}$
A=futurer amount
P=present amount
r=rate in decimal
n=number of times compounded per year
t=time in years

A=2500
r=0.05
n=2
t=2

$2500=P(1+ \frac{0.05}{2})^{(2)(2)}$
$2500=P(1+ 0.025)^{4}$
$2500=P(1.025)^{4}$
$2500=P(1.025)^{4}$
divide both sides by [tex} 1.025^{4} [/tex]
2264.88=P

he should invest
$2264.88

5 0

3 years ago

What is x given triangleABC ~triangleDBE?

denis-greek [22]

x = 37.5 (or) $\frac{75}{2}$

Solution:

Given $\triangle A B C \sim \triangle D B E$ .

Let us take BE = x and BC = 25 + x.

To determine the value of x:

If two triangles are similar then the corresponding angles are congruent and the corresponding sides are in proportion.

$$\frac{AC}{DE}=\frac{B C}{B E}$

$$\frac{50}{30} =\frac{25+x}{x}$

Do cross multiplication, we get

$50x=30(25+x)$

$50x=750+30x$

Subtract 30x from both sides of the equation.

$20 x=750$

Divide by 20 on both sides of the equation, we get

x = 37.5 (or) $\frac{75}{2}$

Hence the value of x is 37.5 or $\frac{75}{2}$ .

7 0

3 years ago

What number is most likely going to be a number less than 7 when rolling a dice

stiv31 [10]

Answer:

Each is equally likely . The probability of rolling less than 7 is equal to the probability of rolling 1 or 2 or 3 or 4 or 5 or 6. That is 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 6/6.

3 0

3 years ago

If you choose one card from a standard deck, what is the probability that the card is either red or a king?

Soloha48 [4]

The probability of choosing a king or red would be 28/52. The simplified version would be 7/13 because there are 52 cards in a standard deck. There are also four suits, so if you divide 52 by 4, you get 13. Because the problem says red OR a king, you would add 3 to 13 because there are 4 kings total and 13 is the total amount of cards per suit. Because the problem also says red cards, you would add another 13. So you are left with the equation 13(2) + 3 which equals 28. There are 52 cards in total, so then you are left with the fraction probability of 28/52. Simplified would be 7/13.

7 0

3 years ago

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HELP ASAP !!!! MATH LOVERS !!! A young chorus has 30 members. There are 14 boys in the chorus.

jolli1 [7]

So, 14 out of 30 of the members are boys. There are 14 boys in chorus. 16 girls.

The ratio would be:

$14:16$

Now, divide both sides by two to simplify.

14/2= 7

16/2= 8

7:8

"A" 7/8, 7:8 is the <em>answer
</em>
I hope this helps!
~kaikers

3 0

3 years ago

Read 2 more answers