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Natalka [10]
3 years ago
14

N-2=10n+4 over 2 what is the value of n

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
6 0

Consider the given equation:

n-2 = \frac{10n+4}{2}

Cross multiplying in the given equation, we get

(n-2) \times 2 = 10n+4

Applying distributive property which states a(b+c) = ab+ac, we get

(n \times 2) - (2 \times 2) = 10n+4

2n -4 = 10n+4

Adding '4' on both the sides, we get

2n-4+4 = 10n+4+4

2n = 10n+8

Subtracting '10n' from both the sides of the equation, we get

2n-10n = 10n+8-10n

-8n = 8

Dividing by '-8' in both the sides of the equation, we get

n= -1

Therefore, the value of 'n' is -1.

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3 years ago
Charlie invests £1200 at 3.5% per annum compound interest.
lbvjy [14]

Answer:

<h2>£1,330.46</h2>

Step-by-step explanation:

Using the compound interest formula A = P(1+\frac{r}{n} )^{nt}

A = amount compounded after n years

P = principal (amount invested)

r = rate (in %)

t = time (in years)

n = time used to compound the money

Given P =  £1200., r = 3.5%, t = 3years, n = 1 year(compounded annually)

A = 1200(1+0.035)^{3}\\ A = 1200(1.035)^{3}\\ A = 1200* 1.108717875\\A = 1,330.46

Value of Charlie's investment after 3 years is £1,330.46

6 0
3 years ago
: Emily’s family ordered a pizza for dinner. The radius of the pizza is 8 inches. How many square inches of pizza did Emily’s fa
denpristay [2]

Answer:

A = 201.06  square inches

Step-by-step explanation:

Radius of the pizza is 8 inches.

It is required to find the area of the pizza get by Emily's family.

Pizza is in the shape of circle. Area of a circular figure is given by :

A=\pi r^2\\\\A=\pi (8)^2\\\\A=201.06\ in^2

So, the Emily's family will get 201.06 square inches of pizza.

5 0
3 years ago
What is 2(7/10)*1/3+4/15=
NeTakaya
2(7÷10)×1÷3+4÷15=1.4×0.33+0.267
                                  =0.462+0.267
                                  =0.729(0.73)
4 0
3 years ago
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