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3 years ago

How many percent of 70 is 68?

1 answer:

3 0

So percent is parts out of 100 so x%=x/100

68/70
divide totaly
0.9714/1
multiply by 100/100 to make bottom 100
97.1% is the answer

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<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E%7B2%7D-8x%2B16%20%7D%7Bx%5E%7B2%7D-7x%2B12%20%7D" id="TexFormula1" title="\frac

trapecia [35]

Answer:

$\frac{x - 4}{x - 3}$

Step-by-step explanation:

$\frac{ {x}^{2} - 8x + 16 }{ {x}^{2} - 7x + 12}$

Lets split the numerator and denominator.

$= > \frac{ {x}^{2} - 4x - 4x + 16}{ {x}^{2} - 3x - 4x + 12}$

Lets factorise the numerator and denominator.

$= > \frac{x(x - 4) - 4(x - 4)}{x(x - 3) - 4(x - 3)}$

$= > \frac{(x - 4)(x - 4)}{(x - 3)(x - 4)}$

Cancelling x - 4 from numerator and denominator ,

$= > \frac{x - 4}{x - 3}$

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3 years ago

A box contains 17 transistors, 3 of which are defective. If 3 are selected at random, find the probability that

Margarita [4]

B none are defective

6 0

3 years ago

Read 2 more answers

If a bag contains 4 blue marbles, 8 red marbles, and 2 green marbles, what is the probability of pickibg a marble that is nit gr

SashulF [63]

The probability is 85.71%

7 0

3 years ago

Which of the following statements is false?

Irina18 [472]

Answer:

6.5<6.05, this one is false

Step-by-step explanation:

look at the Statement and the numbers, it is false through my calculation

7 0

3 years ago

A set W of strings of symbols is defined recursively by 1. a, b, and c belong to W. 2. If x belongs to W, so does a(x)c. Which o

Vadim26 [7]

Answer:

a. a(b)c

b. a(a(b)c)c

d. a(a(a(a)c)c)c

Step-by-step explanation:

We are given the following in the question:

$a,b,c \in W\\\text{If } x \in W \Rightarrow a(x)c \in W$

a. a(b)c

It is given b belongs to W.

$b \in W\\\Rightarrow a(b)c \in W$

b. a(a(b)c)c

$a(b)c \in W\\\Rightarrow a(a(b)c)c \in W$

c. a(abc)c

a(abc)c does not belong to W because we cannot find x in W such that a(abc)c belongs to W.

d. a(a(a(a)c)c)c

$a \in W\\\Rightarrow a(a)c \in W\\\Rightarrow a(a(a)c)c \in W\\\Rightarrow a(a(a(a)c)c)c$

e. a(aacc)c

a(aacc)c does not belong to W because we cannot find x in W such that a(aacc)c belongs to W.

8 0

3 years ago