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gregori [183]
3 years ago
5

a contractor charges 1 200 for 100 square feet of roofing installed. At this rate, how much does it cost to have 1,100 square fe

et installed
Mathematics
1 answer:
Vladimir [108]3 years ago
7 0

Answer:

13200

Step-by-step explanation:

100sq ft=1200

1100sq ft=?

1100*1200/100=13200

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Answer:

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Step-by-step explanation:

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spayn [35]

Answer:

The second option: 3 (6 - 5n)/20n

Step-by-step explanation:

Make sure all fractions have a common denominator:

Step 1. Find a common multiple between all three denominators

5, 4, and 10 all have a common multiple of 20. Proof: 5 × 4 = 20, 4 × 5 = 20, and 10 × 2 = 20

Step 2. Multiply the denominators to get to 20. Whatever you do to the bottom (denominator) must be done to the top (numerator).

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Your fractions now all have a common denominator of 20n.

Rewrite the equation using the new fractions:

4/20n - 15n/20n + 14/20n

Only focus on adding/subtracting the numerators; the denominators will stay the same: 20n.

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Combine like terms:

(18 - 15n)/20n

Factor out any numbers possible:

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Answer:

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Answer:

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Step-by-step explanation:

In this problem, it is given that,

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