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777dan777 [17]
3 years ago
12

What's 2/5 divided by 4 ( simplest form)

Mathematics
2 answers:
Lelechka [254]3 years ago
6 0

Answer:

1/10

Step-by-step explanation:

\frac{2}{5} \div 4 = \frac{2}{5} * \frac{1}{4}

we multiply by the reciprocal when we work with fractions and division.

Now you just multiply across.

Therefore, you have 2/20, which simplifies to 1/10.

VLD [36.1K]3 years ago
5 0

Answer: 1/10

Step-by-step explanation:

To divide fractions, you can use the "keep, change, flip" method.

1. Keep the first fraction as-is (2/5)

2. Change the division sign to a multiplication sign

3. Flip the second fraction (i.e. find the reciprocal). In this case, 4/1 becomes 1/4.

Plug in the Values:

2/5 x 1/4

Multiply the numerators and the denominators together, respectively.

2/20

Simplify by dividing by the GCF.

1/10

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Step-by-step explanation:

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Prove that for any value of x the value of the expression (x–3)(x+7)–(x+5)(x–1) is equal to –16.
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For any value of x the value of the expression (x–3)(x+7)–(x+5)(x–1) is equal to –16.

Step-by-step explanation:

In order to prove the statement we can take any value of x and then solve the expression to see if it equal to -16 or not.

So,

Taking x = 2

=(x-3)(x+7)-(x+5)(x-1)\\=(2-3)(2+7)-(2+5)(2-1)\\=(-1)(9)-(7)(1)\\=-9-7=-16

Taking x = 5

=(x-3)(x+7)-(x+5)(x-1)\\=(5-3)(5+7)-(5+5)(5-1)\\=(2)(12)-(10)(4)\\=24-40\\=-16

Taking x= 10

=(x-3)(x+7)-(x+5)(x-1)\\=(10-3)(10+7)-(10+5)(10-1)\\=(7)(17)-(15)(9)\\=119-135=-16

Hence,

For any value of x the value of the expression (x–3)(x+7)–(x+5)(x–1) is equal to –16.

Keywords: Polynomials, expressions

Learn more about polynomials at:

  • brainly.com/question/10941043
  • brainly.com/question/10978510

#LearnwithBrainly

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