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Nataly [62]
3 years ago
12

Which expression is equivalent to 4(3n -5)?

Mathematics
2 answers:
ra1l [238]3 years ago
8 0

Answer:

12n - 20

Step-by-step explanation:

1. 4(3n-5)

2. 4(3n-5) = 12n - 20           multiply every number in (  ) by 4 (include variables)

Mark me as brainliest!!

aksik [14]3 years ago
4 0

Answer:

12n-20

Step-by-step explanation:

Use distribution

4×3n= 12n

4×(-5)= -20

12n-20

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Xavier opened a savings account with a deposit of $12,000. The account earned simple interest. He did not make any additional de
klasskru [66]

The annual interest rate on the saving account of Xavier which is earned simple interest is 9%.

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

Simple interest is the amount charged on the principal amount with a fixed rate of interest for a time period. Simple interest calculated only on the principal amount.

The formula for the simple interest can be given as,

I=\dfrac{PRT}{100}

Here, (<em>I</em>) is the interest amount on the principal amount of (<em>P</em>) with the rate of (<em>r</em>) in the time period of (<em>t</em>).

Xavier opened a savings account with a deposit of $12,000. At the end of 3 years, the account balance was $12,324.

The principal amount is $12000 and the total amount is $12324. Thus, the interest earned by the Xavier is,

I=12324-12000\\I=324

Total time period is 3 years and the account earned simple interest. Thus, put these values in the above formula as,

324=\dfrac{(12000)R(3)}{100}\\R=\dfrac{32400}{12000\times3}\\R=9\%

Hence, the annual interest rate on the saving account of Xavier which is earned simple interest is 9%.

Learn more about the simple interest here;

brainly.com/question/2294792

8 0
2 years ago
Simplify the following expression 4 + 3 . 7
Brilliant_brown [7]
Multiply the numbers
4 + 3 . 7
Then 4 + 21
= 25
4 0
2 years ago
Which is the answer of the following question
fgiga [73]

Answer:

<u>B) 25.12 cm</u>

Step-by-step explanation:

<u>Arc length</u>

  • 2πr x 1/4
  • 2 x 3.14 x 16/4
  • 8 x 3.14
  • <u>25.12 cm</u>
3 0
2 years ago
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