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mestny [16]
3 years ago
10

Ray industries bought a touchscreen monitor for $1200 it is expected to depreciate at a rate of 25% per year what was the value

of the monitor be in three years round to the nearest dollar
Mathematics
1 answer:
max2010maxim [7]3 years ago
7 0

So for this problem, we will be using the exponential equation format, which is y = ab^x. The a variable is the initial value, and the b variable is the growth/decay.

Since our touchscreen starts off at a value of 1200, that will be our a variable.

Since the touchscreen is decaying in value by 25%, subtract 0.25 (25% in decimal form) from 1 to get 0.75. 0.75 is going to be your b variable.

In this case, time is our independent variable. Since we want to know the value 3 years from now, 3 is the x variable.

Using our info above, we can solve for y, which is the cost after x years.

y=1200*0.75^3\\y=506

In context, after 3 years the touchscreen will only be worth $506.

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Answer:

\frac{24}{35}

Step-by-step explanation:

1) Remove parentheses.

-  \frac{4}{5}  \div  -  \frac{7}{6}

2) Use this rule: a ÷ b/c = a × c/b.

-  \frac{4}{5}  \times  \frac{6}{ - 7}

3) Use this rule: a/b × c/d = ac/bd.

-  \frac{4 \times 6}{5 \times  - 7}

4) Simplify 4 × 6 to 24.

-  \frac{24}{5 \times  - 7}

5) Simplify 5 × -7 to -35.

- \frac{24}{ - 35}

6) Move the negative sing to the left.

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7) Remove parentheses.

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<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>24</u><u>/</u><u>35</u>.

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