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kirill [66]
3 years ago
14

A building contractor has a piece of crown molding that is 48 ½ inches long. He cuts off one piece measuring 10 ¼ inches and ano

ther piece 2 feet ⅛ inch.How much crown molding does he have left?
Mathematics
1 answer:
lyudmila [28]3 years ago
7 0

Answer:

14 1/8 inches of molding

Step-by-step explanation:

In order to find the solution, we'll have to do 2 fractions subtractions.

To be able to subtract fractions, we have to make sure they are placed in the same denominator.  So, the first thing we'll do is to convert all the numbers in 8th, because that's the greatest denominator.

48 \frac{1}{2}  = 48 \frac{4}{8} = \frac{(48 * 8) + 4}{8}  = \frac{388}{8}

10 \frac{1}{4} = 10 \frac{2}{8} = \frac{(10 * 8) + 2}{8} = \frac{82}{8}

For the last one, we'll first convert the 2 feet into 24 inches.

24 \frac{1}{8} = \frac{(24 * 8) + 1}{8} = \frac{193}{8}

Now, we'll subtract each of the two pieces cut from the original molding's length, first the 10 1/4 inches piece

\frac{388}{8} - \frac{82}{8} = \frac{388 - 82}{8} = \frac{306}{8}

then the 2 feet 1/8 piece

\frac{306}{8} -  \frac{193}{8} = \frac{306 - 193}{8} = \frac{113}{8} = 14 \frac{1}{8}

So,  the contractor is left with 14 1/8 inches of molding.

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When making a book cover, Anwar adds an additional 20 square inches to the surface area to allow for overlap. How many square in
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Answer:

234 square inches

Step-by-step explanation:

We are given that

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Height of book, h=1in

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We have to find how many square inches of paper to make  cover of one book.

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3 years ago
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What is the solution to the equation 13.7y – 10.6 = 6.2y + 19.4?  
Lyrx [107]

Answer:

4

Step-by-step explanation:

Simplifying

13.7y + -10.6 = 6.2y + 19.4

Reorder the terms:

-10.6 + 13.7y = 6.2y + 19.4

Reorder the terms:

-10.6 + 13.7y = 19.4 + 6.2y

Solving

-10.6 + 13.7y = 19.4 + 6.2y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-6.2y' to each side of the equation.

-10.6 + 13.7y + -6.2y = 19.4 + 6.2y + -6.2y

Combine like terms: 13.7y + -6.2y = 7.5y

-10.6 + 7.5y = 19.4 + 6.2y + -6.2y

Combine like terms: 6.2y + -6.2y = 0.0

-10.6 + 7.5y = 19.4 + 0.0

-10.6 + 7.5y = 19.4

Add '10.6' to each side of the equation.

-10.6 + 10.6 + 7.5y = 19.4 + 10.6

Combine like terms: -10.6 + 10.6 = 0.0

0.0 + 7.5y = 19.4 + 10.6

7.5y = 19.4 + 10.6

Combine like terms: 19.4 + 10.6 = 30

7.5y = 30

Divide each side by '7.5'.

y = 4

Simplifying

y = 4

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