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harkovskaia [24]
3 years ago
14

Louis wants to carpet the rectangular floor of his basement. The basement has an area o f605 square feet. The width of the basem

ent is 1/5 its length. What is the length of Louis's basement?
Mathematics
1 answer:
zhannawk [14.2K]3 years ago
4 0

Answer:

Length = 55 ft

Step-by-step explanation:

Given:

Area of rectangular floor= 605ft²

Length= x

Width= 1/5x

Formula for area of rectangular floor= Length × width

Put the given into the formula.

605 ft² = x × 1/5x

605 ft² = x²/5

multiplying both sides by 5

605 ft² × 5 = x²/5 × 5

x² = 605 ft² × 5

= 3025 ft²

x= √3025 ft²

x= 55 ft

Put x into the unknown above.

Length= x

Width= 1/5x

Length = 55 ft

Width= (1/5)×55 = 11 ft

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NemiM [27]
<h3>Answer:  Choice A</h3><h3>9.80h+10 = 88.40</h3>

===========================================================

Work Shown:

  • h = number of hours worked.
  • 9.80h = amount of money earned after working h number of hours (ignoring the meal bonus).
  • 9.80h+10 = total amount of money earned after adding on the meal bonus.
  • 9.80h+10 = 88.40 is the equation we use since the total 9.80h+10 is the same as the total she earned 88.40 dollars.

--------------------

Extra info (optional section)

If you want to solve for h, then you could follow these steps.

9.80h+10 = 88.40

9.80h = 88.40-10 ... subtract 10 from both sides

9.80h = 78.40

h = 78.40/9.80 .... divide both sides by 9.80

h = 8

Valerie worked 8 hours on Friday.

As a check,

9.80h + 10 = 88.40

9.80*8 + 10 = 88.40

78.40 + 10 = 88.40

88.40 = 88.40

The answer is confirmed.

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3 years ago
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