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2 years ago

Help please ;^;^;^;^;^;^;^;^;^;

Mathematics

2 answers:

kumpel [21]2 years ago

5 0

Answer:

10n+10=8n-10

n= -10

I hope this helps

kirill115 [55]2 years ago

3 0

Answer:Im pretty sure its -10

Step-by-step explanation:

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2x=4 what does x equal?

alex41 [277]

2x=4
Divide 2 on both sides so that the only thing remaining on the left side is the variable x.
Final Answer: x = 2

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2 years ago

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Jaina and Tomas compare their compound interest accounts to see how much they will have in the accounts after three years. They

MariettaO [177]

The question is incomplete. The complete question is :

Jaina and Tomas compare their compound interest accounts to see how much they will have in the accounts after three years. They substitute their values shown below into the compound interest formula. Compound Interest Accounts Name Principal Interest Rate Number of Years Compounded Jaina $300 7% 3 Once a year Tomas $400 4% 3 Once a year. Which pair of equations would correctly calculate their compound interests?

Solution :

It is given that Jaina and Tomas wants to open an account by depositing a principal amount for a period of 3 years and wanted to calculate the amount they will have using the compound interest formula.

So for Jiana :

Principal, P = $300

Rate of interest, r = 7%

Time, t = 3

Compounded yearly

Therefore, using compound interest formula, we get

$A=P\left(1+\frac{r}{100}\right)^{t}$

$=300\left(1+\frac{7}{100}\right)^{3}$

$=300(1+0.07)^3$

Now for Tomas :

Principal, P = $400

Rate of interest, r = 4%

Time, t = 3

Compounded yearly

Therefore, using compound interest formula, we get

$A=P\left(1+\frac{r}{100}\right)^{t}$

$=400\left(1+\frac{4}{100}\right)^{3}$

$=400(1+0.04)^3$

Therefore, the pair of equations that would correctly calculate the compound interests for Jaina is $A=300(1+0.07)^3$ .

And the pair of equations that would correctly calculate the compound interests for Tomas is $A=400(1+0.04)^3$ .

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2 years ago

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Assume equal likelihood for the birth of boys and girls. What is the probability that a four-child family chosen at random will

garik1379 [7]

Each child has a 50% chance to be a girl and 50%chance to be a boy so with 4 children the probability is
$\frac{1}{2} \times \frac{1}{2} \times \frac{1}{2} \times \frac{1}{2} = \frac{1}{16}$

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3 years ago

What number does stand for in this equation? 6x3=(x5)-(x2)

MissTica

Answer:

the answer is 6

Step-by-step explanation:

6×3=18

So 6×5=30, 6×2=12

30-12=18

18=18

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3 years ago

Help me with number 7 for 10 points!!!

Ket [755]

Remember this rhyme:

Hey Diddle Diddle, the medians the middle:

(Answer for your question: Median is 80%)

You add and divide for the Mean:

( Answer for your question: Mean is 93)

The mode is the one that appears the most:

( Answer for your question: Mode is 87%)

And the range is the difference between.:

( Answer for your question: Range is 54.)

I hope this helps! :)

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2 years ago

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Help please ;^;^;^;^;^;^;^;^;^; ​

Help please ;^;^;^;^;^;^;^;^;^;