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myrzilka [38]
3 years ago
5

David rents DVDS from a company that changes a $7.00 monthly fee and $1.50 for each dvd rental. He ends up paying $20.50 for the

month of june. The equation 1.5 x + 7 = 20.5 represents this situation. Solve this equation for x type the NUMER in the text box please help me!
Mathematics
1 answer:
serious [3.7K]3 years ago
3 0
1.5x + 7 = 20.5
First subtract 7 from both sides
1.5x = 13.5
Then divide both sides by 1.5
x = 9


Let me know in comments if you have questions
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Set the equation up as a proportion, where x = the height of the tree in feet
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135/4.5 = 30
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3,510



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Step-by-step explanation:

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6 0
3 years ago
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Answer:

<h2>3000 pcs</h2>

Step-by-step explanation:

given:

the Length, breadth and height of a wall is 5m,30cm and 3 m

find:

how many bricks of dimensions 20cm ×10 cm× 7.5 cm are required to build the wall​

solution:

vol of the wall = 5 x 3 x 0.30= 4.5 m³

vol per brick = 0.20 x 0.10 x 0.075 = 0.0015 m³

number of bricks =  <u> wall volume </u>

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6 0
3 years ago
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