when a number is added to 1/5 of itself the result is 24. the equatation that models this problem is n + 1/5 n equals 24. what is the value n

Answers

Answer 1

Answer: If you convert it to decimals you get 1.2n= 24.
Divide both sides by 1.2.

The answer is n=20.

Answer 2

Answer: It is N = 20 sure of it

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For non-zero denominators, simplify: $(3a^3-75a)/(a(a+5)(a+5))$

Answers

$(3a^3-75a)/(a(a+5)(a+5))=(3a(a^2-25) )/(a(a+5)(a+5))=(3a(a - 5)(a+5) )/(a(a+5)(a+5)) =(3 (a - 5) )/( (a+5) )$

What value of k makes the trinomial x^2- 10x + k a perfect square?

Answers

Answer: 25

Step-by-step explanation: (x-a)² = x² - 2ax + a²

From x² - 10x + k we deduce that 10x = 2·5x and a = 5

Then k = 5²2

In a crayon box there are 5 dark colors for every 8 light colors. If there are 20 dark colors, how many light colors are there?

Answers

5x4=20 so 8x4=32 32 light colors in the box

If we write this as a ratio then it would be 5:8. Now since there are 20 dark colors and also 5, what do 5 and 20 have in common... 5 times 4 is 20 so since we multiplied by 4 on dark colors do the same to the light colors so 8 times 4 = 32. So the answer is 32 light colors

a boat cost 12,050 and decreases in value by 12% per year. How much will the boat be worth after 9 years

Answers

Given:
Cost = 12,050
depreciation rate = 12%

year beginning value dep.rate depreciation ending value
1   12,050.00 12% 1,446.00    10,604.00
2   10,604.00 12% 1,272.48      9,331.52
3   9,331.52   12% 1,119.78      8,211.74
4   8,211.74   12%   985.41      7,226.33
5   7,226.33   12%   867.16      6,359.17
6   6,359.17   12%   763.10      5,596.07
7   5,596.07   12% 671.53      4,924.54
8   4,924.54   12%   590.94      4,333.60
9   4,333.60   12%   520.03      3,813.56

The boat will be worth $3,813.56 after 9 years.

Depreciation = beginning cost x depreciation rate
Ending cost = beginning cost - depreciation

Depreciation is the wear and tear of an object that decreases its value.

Factor completely 5v^2+5v-100