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ale4655 [162]
3 years ago
11

Solve for C: C-9(greater than or equal too sign)9

Mathematics
1 answer:
creativ13 [48]3 years ago
8 0

Answer:

{ \tt{C - 9 \geqslant 9}} \\  \\ { \tt{C \geqslant 9 + 9}} \\  \\ { \rm{answer}} :  \: { \tt{C \geqslant 18}}

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boyakko [2]
It’s all about substitution, i think the answer is 2.
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I need help please, this is due today.<br><br>​
ollegr [7]

Answer:

-1

Step-by-step explanation:

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3 years ago
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Paul is saving for a down payment to buy a house. The account earns 13% interest compound quarterly, and he wants to have $15,00
Tatiana [17]

Answer:

The principal must be = $8991.88

Step-by-step explanation:

Formula for compound interest is:

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

Where A is the amount after 't' years.

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n is the number of times interest is compounded each year.

r is the rate of interest.

Here, we are given that:

Amount, A = $15000

Rate of interest = 13 % compounded quarterly i.e. 4 times every year

Number of times, interest is compounded each year, n = 4

Time, t = 4 years.

To find, Principal P = ?

Putting all the given values in the formula to find P.

15000 = P(1 + \frac{13}{400})^{4\times 4}\\\Rightarrow 15000 = P(1 + 0.0325)^{16}\\\Rightarrow 15000 = P(1.0325)^{16} \\\Rightarrow 15000 = P \times 1.66817253\\\Rightarrow P = \dfrac{15000}{1.66817253}\\\Rightarrow P \approx \$8991.88

So, <em>the principal must be = $8991.88</em>

4 0
3 years ago
Solve the simultaneous equations.
Vera_Pavlovna [14]

Answer:

x = 1.5  ; y = -0.5

Step-by-step explanation:

2x + 4y = 1  ---------------------(i)

3x - 5y =7 ----------------------(ii)

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add,         22x        = 33          { here y will be eliminated}

                           x = 33/22 = 3/2

                           x = 1.5

Put the value of x in equation (i)

2*1.5 + 4y = 1

3 + 4y = 1

4y = 1-3

4y = -2

y  = -2/4 = -1/2

y = -0.5

4 0
3 years ago
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chubhunter [2.5K]
You can also chose B
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