How do I find the answer for 25/8-6/8

2 answers:

4 0

First, subtract the numerators and keep the denominator. so it will be 19/8 then turn into a mixed number which will be 16 1/4

MAXImum [283]3 years ago

4 0

So 2 and 5/8 equals 21/8. Whenever you turn a mixed number into an improper fraction, multiply the whole number by the denominator and add the numerator. Since both fractions already have a common denominator, all you need to do is subtract the numerators and don't touch the denominator.

21/8 - 6/8 = 15/8 = 1 7/8

This cannot be simplified any further so I would write it as a mixed fraction.

Hope this helps!

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2 years ago

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S_A_V [24]

To answer question 12, you first need to know the definition of a prism and a pyramid.

A pyramid is a 3-D structure with one base, whose outer faces are made of triangles, and meet at a single point at the top.

A prism is any 3-D shape with a base of any number of sides, another base with the same amount of sides, and faces joining the two together on every side of the bases.

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Shape A is a pyramid, because it has one base, and all the faces join together in at one point.

Shape B is a prism, because it has two bases, and faces joining every side of the bases.

Shape C is a prism.

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For #13, you have to know the definition of a cube to figure out the math of how many cubes there are.

A cube is a 3-D shape with six sides, all made up of squares of the same size.

The box has a volume of 120 cubic inches, and each cube is 1 inch. Since every side of a cube is equal, a 1-inch cube is one cubic inch.

This means that a box with a volume of 120 cubic inches will fit 120 of the 1 inch cubes.

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3 years ago

Geometry solve for x

gulaghasi [49]

Answer: b

Step-by-step explanation: the parallel proportionality theorem states that “if two or more parallel lines are intersected by two transversals, the parallel lines divide the transversals proportionally.” Therefore, you make a ratio and solve:

(4/2)=(6/x) and if you solve, x=3

now, 6+3=9, so 2x-11=9

if you solve for that, x=10

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3 years ago

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Nutka1998 [239]

I'm assuming you're looking to find the expanded form of the number?

This number is in scientific notation. The easiest way to convert it to a normal number is to move the decimal place 14 to the right. I've attached a picture showing how to do this. You should get 630,000,000,000,000

There's a faster way to do this - notice that you need to move the decimal 14 to the right, and there's one number already after the decimal place. Therefore, 13 places will be filled with zeros. So, just write out 63 and add 13 zeros.

For more general help on scientific notation, check out these videos: https://www.khanacademy.org/math/pre-algebra/pre-algebra-exponents-radicals/pre-algebra-scientific-notation/v/scientific-notation-old

Hope that helps! Feel free to message me or leave a comment if I can clarify anything :)

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3 years ago

A parallelogram has an area of 111.86 ft2 and a height of 11.9 ft. how long is the base of the parallelogram? enter your answer

777dan777 [17]

111.86/11.9 = 11186/1190 = 5593/595 = 9.4

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3 years ago

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