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velikii [3]
2 years ago
13

Simplify the expression. 8w + 5r – t + 9r

Mathematics
1 answer:
Wittaler [7]2 years ago
3 0

Answer:

14r−t+8w

Step-by-step explanation:

Let's simplify step-by-step.

8w+5r−t+9r

=8w+5r+−t+9r

Combine Like Terms:

=8w+5r+−t+9r

=(5r+9r)+(−t)+(8w)

=14r+−t+8w

Answer:

=14r−t+8w

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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.

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