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3 years ago

What is the percentage decrease from 40 to 28? :)

Mathematics

1 answer:

mafiozo [28]3 years ago

5 0

Answer:

70%

Step-by-step explanation:

Look it up

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Pls answer fast pls pls

forsale [732]

<h3><u>Answer</u> :- </h3>

c) 0.01

<h3><u>Solution</u> :-</h3>

To Write percentage in decimal or fraction we divide it by 100

therefore,

$\begin{gathered}\\\implies\quad \sf 2\% = \frac{2}{100} \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf 2\% = 0.02 \\\end{gathered}$

Half of 0.02 = $\sf\frac{1}{\cancel2} \times\cancel{0.02}$

$\implies\boxed {0.01}$

5 0

2 years ago

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If f(x)=12x+2(x-1), find f(6)

zavuch27 [327]

Answer:

12x6+2(6-1)

72+2x5

72+10

82 is the answer.

Step-by-step explanation:

Just replace the X's in the problem with 6.

5 0

3 years ago

What is 31,693 rounded to the nearest whole number?

Illusion [34]

Its about 32,000 rounded up

6 0

3 years ago

Will someone plz help<br><br> by the way funny photo

Artist 52 [7]

110.859

Hi its me again

8 0

2 years ago

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Which are the solutions of x2 = –7x – 8?

vovangra [49]

Answer:

The solutions are:

$x_1=\frac{-7+\sqrt{17}}{2}$ $x_2=\frac{-7-\sqrt{17}}{2}$

Step-by-step explanation:

We have the following quadratic equation

$x^2 = -7x - 8$

We can rewrite the equation as follows

$x^2+7x + 8=0$

Now we use the quadratic formula to solve the equation

For an equation of the form $ax ^ 2 + bx + c = 0$ the quadratic formula is:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

In this case:

$a=1,\ b=7,\ c=8$

Then:

$x=\frac{-7\±\sqrt{7^2-4(1)(8)}}{2(1)}$

$x=\frac{-7\±\sqrt{49-32}}{2}$

$x=\frac{-7\±\sqrt{17}}{2}$

$x_1=\frac{-7+\sqrt{17}}{2}$

$x_2=\frac{-7-\sqrt{17}}{2}$

7 0

3 years ago

Read 2 more answers