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3 years ago

11

Regina leased a car for $380 per month. Her new lease is $475 per month. What is the percent increase in the monthly cost of her

lease?

2 answers:

sergeinik [125]3 years ago

8 0

Answer: 3

Step-by-step explanation:

maks197457 [2]3 years ago

6 0

Answer:

25

Step-by-step explanation:

25

You might be interested in

A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first of the 64 squares of a chess

Sveta_85 [38]

Answer:

That's 2635249153387078 pounds or 1317624576693.5 tons

Step-by-step explanation:

The series is 2^(n-1) where n=1,2,3,4,...,62,63,64

We can adjust the index and write it as 2^n where n=0,1,2,3,4,...,61,62,63

The sum of the geometric series is:

a1 * (1 - r^n)

------------------

1-r

where r is the common ratio in this case 2,

a1 is the first term, in this case 1,

and n is the number of term, in this case 64

1 * (1 - 2^64)

---------------- = 18446744073709551615

1 - 2

Dividing that by 7000

That's 2635249153387078 pounds or 1317624576693.5 tons

Hope this helped!

3 0

3 years ago

Compound interest £2000 for 3 years 5.5% annum

xenn [34]

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\£2000\\
r=rate\to 5.5\%\to \frac{5.5}{100}\to &0.055\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{per annum, thus once}
\end{array}\to &1\\
t=years\to &3
\end{cases}
\\\\\\
A=2000\left(1+\frac{0.055}{1}\right)^{1\cdot 3}$

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=%28%20%5Cfrac%7B1%7D%7B2%7D%20%20%7Ba%7D%5E%7B2%7D%20%20%2B%20%20%20%5Cfrac%7B1%7D%7B2%7D%20ab

Zigmanuir [339]

Answer:

$\frac{1}{2}$ (a + 2b)(a - b)

Step-by-step explanation:

Assuming you require the expression to be factored

Given

$\frac{1}{2}$ a² + $\frac{1}{2}$ ab - b² ← factor out $\frac{1}{2}$ from each term

= $\frac{1}{2}$ (a² + ab - 2b²) ← factor the quadratic

Consider the factors of the coefficient of the b² term(- 2) which sum to give the coefficient of the ab- term (+ 1)

The factors are + 2 and - 1, since

2 × - 1 = - 2 and 2 - 1 = + 1, thus

a² + ab - 2b² = (a + 2b)(a - b) and

$\frac{1}{2}$ a² + $\frac{1}{2}$ ab - b² = $\frac{1}{2}$ (a + 2b)(a - b)

5 0

3 years ago

Find the amount of each payment to be made into a sinking fund which earns 9% compounded quarterly and produces $43 comma 000

Solnce55 [7]

Answer:

$2647.18

Step-by-step explanation:

Formula : $A[\frac{1+(\frac{r}{n})^{n}-1 }{(\frac{r}{n} )}]$

Future value = $43,000

r = rate of interest = 9% = 0.09

t = 3.5 years (compounded quarterly)

n = number of compounding (3.5 × 4) = 14

Now put the values into formula :

43000 = $A[\frac{1+(\frac{0.09}{4})^{14}-1 }{(\frac{0.09}{4} )}]$

$43000=A(\frac{(1+0.0225)^{14}-1}{\frac{0.09}{4}})$

$43000=A(\frac{(1.0225)^{14}-1}{0.0225})$

43000=A( $\frac{0.365483427}{0.0225})$

43,000 = A(16.243708)

A = $\frac{43000}{16.243708}$

A = $2,647.17883 ≈ $2647.18

5 0

3 years ago

Which of the following expressions are equivalent to 6 + (-4) - 5 ?

Gekata [30.6K]

Answer:

A

C

Step-by-step explanation:

A and C gives same result....

6 0

2 years ago

Read 2 more answers