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Montano1993 [528]
3 years ago
14

When 142 is added to a number, the result is 64 more than 3 times the number. Find the number.

Mathematics
2 answers:
Veronika [31]3 years ago
8 0

Answer:

...

Step-by-step explanation:

x + 142=64+3x

...

pishuonlain [190]3 years ago
5 0

Answer:

x + 142 =3x + 64

2x = 78

x = 39

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Answer:

x = 20

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Step-by-step explanation:

2x-4 = 96-3x

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2 years ago
Tasha claims that her skateboard weighs about 3 pounds. is Tasha's claim reasonable? Explain
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9. Use the​ compound-interest formula to find the account balance​ A, where P is​ principal, r is interest​ rate, n is number of
IceJOKER [234]

Interest on interest, or compound interest, is the adding of interest to the principal sum of a loan or deposit. The account balance after a period of 5 years will be $1.63634×10²⁰.

<h3>What is compound interest?</h3>

Interest on interest, or compound interest, is the adding of interest to the principal sum of a loan or deposit. It's the outcome of reinvesting interest rather than paying it out so that interest is received on the principal plus previously collected interest in the next quarter.

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

A = final amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

Given the principal amount is $12,385, the rate of interest is 7.5%, and the time period is daily. Therefore, the amount can be written as,

A = P(1 + \frac{r}{n})^{nt}\\\\A = \$12,385(1 + \frac{7.5}{365})^{(365 \times 5)}\\\\A = \$1.63634 \times 10^{20}

Hence, the account balance after a period of 5 years will be $1.63634×10²⁰.

Learn more about Compound Interest:

brainly.com/question/25857212

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