3 years ago

What is the rate of change? how do you find it?

1 answer:

3 0

In math, slope is the ratio of the vertical and horizontal changes between two pointson a surface or a line. The vertical change between two points is called the rise, and the horizontal change is called the run. The slope equals the rise divided by the run: . This simple equation is called the slope formula.

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The value of a motorbike depreciates by 32% per year. Work out the current value of a motorbike bought 5 years ago for £3600

DaniilM [7]

$\bf \qquad \textit{Amount for Exponential Decay}
\\\\
A=P(1 - r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{initial amount}\to &3600\\
r=rate\to 32\%\to \frac{32}{100}\to &0.32\\
t=\textit{elapsed time}\to &5\\
\end{cases}
\\\\\\
A=3600(1-0.32)^5\implies A=3600(0.68)^5\implies A\approx 523.41601$

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4 years ago

Help please asap !! Enter your answer in the box

aleksandr82 [10.1K]

I believe the equation would be y = -1/4x + 4

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3 years ago

Which expression is equivalent to 12 1/5 - ( 22 2/5 ) - ( 40 1/5 ) ?

RideAnS [48]

Answer:

-50 2/5.

Step-by-step explanation:

First subtract the whole numbers:

12 - 22 - 40

= -50.

Next the fractions:

1/5 - 2/5 - 1/5

= -2/5

So the answer is -50 2/5.

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3 years ago

Estimate the sum. 68.4 + 50.2 = ? Use rounding to estimate the sum.

Alex73 [517]

Answer:

118.6 or 119

Step-by-step explanation:

you just add and round up

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3 years ago

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A board game has a spinner divided into sections of equal size. Each section is labeled with a number between 1 and 5. Which num

Valentin [98]

Answer:

Step-by-step explanation:

first, there are three 5's on the spinner, with a total of 12 sections. 3/12 = 0.25, so you multiply 0.25 times 300 (the total spins) and get 75

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3 years ago