Show me how to do this

Mathematics

1 answer:

romanna [79]2 years ago

4 0

Answer:

Step-by-step explanation:

The perimeter of the given triangle:

P = (2x + 1) + (x + 2) + (3x - 9) and P = 36 cm.

Therefore we have the equation:

2x + 1 + x + 2 + 3x - 9 = 36 combine like terms

(2x + x + 3x) + (1 + 2 - 9) = 36

6x - 6 = 36 add 6 to both sides

6x = 42 divide both sides by 6

x = 7

You might be interested in

The value of a machine depreciates each year by 5% of its value at the beginning of that year. If its value when new on 1st Janu

Artemon [7]

$\qquad \textit{Amount for Exponential Decay} \\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{current amount}\\ P=\textit{initial amount}\dotfill &10250\\ r=rate\to 5\%\to \frac{5}{100}\dotfill &0.05\\ t=\textit{elapsed time}\dotfill &9\\ \end{cases} \\\\\\ A=10250(1 - 0.05)^{9}\implies A=10250(0.95)^9\implies A\approx 6460$

8 0

1 year ago

Justin horse weighs 600 kilograms. How much does it weigh in grams

Art [367]

600 k (Kilograms to grams is:
600000 g (grams)

3 0

2 years ago

Read 2 more answers

Suppose that $3000 is placed in an account that pays 16% interest compounded each year. Assume that no withdrawals are made from

Papessa [141]

Answer:

a) $3480

b) $4036.8

Step-by-step explanation:

The compound interest formula is given by:

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

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Suppose that $3000 is placed in an account that pays 16% interest compounded each year.

This means, respectively, that $P = 3000, r = 0.16, n = 1$