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joc223
05.12.2019 •
Mathematics
Apiece of wire 24 cm long has the shape of a rectangle. given that the width is w cm, show that the area, a cm², of the rectangle is given by the function a = 36-(6-w). find the greatest possible domain and the corresponding range of this function in this context.
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Ответ:
answer: 8.5x + 20 < 54
Less than 4 tubes.
Step-by-step explanation:
Assume that x represents the number of tubes of paint Catherine can buy.
Catherine has $54. She plans to spend more than $20 of the money for a painting canvas. The rest will go toward paints. This means that the amount she has to spent on paint is < 54 - 20
Each tube of paint costs $8.50. The cost of x tubes of paint would be 8.5x
Therefore, the inequality that best represents the scenario is
8.5x < 54 - 20
8.5x + 20 < 54
The number of tubes that she can buy is
8.5x < 34
x < 34/8.5
x < 4
Less than 4 tubes