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Furkat [3]
3 years ago
8

Jan wants to paint her bedroom that measures 15 feet wide, 20 feet long, and 8 feet high. One gallon of the paint she selects co

vers 400 square feet and costs $18 per gallon. The sales tax is 7.5%. She plans to paint the four walls and the ceiling with the same paint. (She ignores the area of the two windows and the door into the room when she estimates the amount of paint she needs.)
a) How many gallons of paint should she buy? (Round to nearest hundredths.)

b) How much will the paint cost, including sales tax. (Round to nearest penny.)
Mathematics
1 answer:
trasher [3.6K]3 years ago
8 0

Answer:

Step-by-step explanation:

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WHAT IS 3/8 DIVIDED BY 1/2
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Answer: 3/4

Step-by-step explanation: Dividing by a fraction is the same as multiplying by its reciprocal. In other words, we can change the divison sign to multiplication and flip the second fraction.

So here, 3/8 divided by 1/2 can be rewritten as 3/8 × 2/1.

Now we are simply multiplying fractions so we multiply across the numerators and we multiply across the denominators.

So we have 3 × 2 which is 6 and 8 × 1 which is 8. Since 6/8 is not in lowest terms, we divide the numerator and the denominator by the greatest common factor of 6 and 8 which is 2 and we get the equivalent fraction 3/4.

Therefore, 3/8 divided by 1/2 is 3/4.

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Answer:

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Answer:

A intersection B = ( elements which are common in both)

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Ana es diseñadora
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