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Firlakuza [10]
3 years ago
15

Help!! Find the value of x

Mathematics
1 answer:
Romashka [77]3 years ago
5 0

Answer:

x = 51

Step-by-step explanation:

The sum of internal angles for this rectangle is 360

x + 81 + 124 + 104 = 360 add like terms

x + 309 = 360 subtract 309 from both sides

x = 51

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Caleb has an offer from a credit card issuer for 0% APR for the first 30 days and 17.68%
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Solution:- Answer is 19.33%

Annual percentage rate (APR) is the yearly rate for a price which have to pay for borrowing money through credit card.

Here Caleb has an offer from a credit card issue for i=0% APR for the first 30 days.

now, effective interest rate for n= 30 days  

=r=(1+\frac{i}{n} )^n-1\\\Rightarrow\ r=(1+\frac{0}{30} )^{30}-1\\\Rightarrow\ r=(1+0)^{30}-1=1-1=0

After 30 days APR =17.68%=0.1768

n=365-30=335 days

now the effective interest rate for n=335 days

=r=(1+\frac{i}{n} )^n-1\\\Rightarrow\ r=(1+\frac{0.1789}{335} )^{335}-1\\\Rightarrow\ r=(1+0.000527)^{335}-1=(1.000527)^{335}-1=1.1933-1=0.1933

=19.33%

So the effective interest rate for 365 days =0+19.33% =19.33%

So fourth option is correct.

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3 years ago
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Minchanka [31]
\left \{ {{x+3y=9~(3)} \atop {3x-y=7(-1)}} \right. \\
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One solution.
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Step-by-step explanation:

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Answer:

10 represents the initial amount!

Step-by-step explanation:

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Answer:

c

Step-by-step explanation:

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