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2 years ago

If 8 pencils cost 3 dollars, then how many pencils can you buy with 27 dollars?

Mathematics

2 answers:

Kisachek [45]2 years ago

8 0

Answer:

72 pencils

Step-by-step explanation:

i used a calculator

klio [65]2 years ago

3 0

Answer:

72 pencils

Step-by-step explanation:

8-3

x-27

cross multiple

x×3=8×27

x×3=216

x=216/3

x=72

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Find f(2) for f(x)=3x2+9x−6

Naya [18.7K]

Answer:

a. $f(2)=24$

Step-by-step explanation:

Given function:

$f(x)=3x^2+9x-6$

To find $f(2)$

Solution:

In order to find $f(2)$ ,we need to plugin input=2 i.e. the value of $x=2$ in the function and find the output by evaluating.

Plugging in $x=2$ in the given function.

$f(2)=3(2)^2+9(2)-6$

Evaluating.

$f(2)=3(4)+18-6$

$f(2)=12+18-6$

∴ $f(2)=24$ (Answer)

3 0

2 years ago

How to convert nonlinear equation to linear equation?

9966 [12]

Let's take the non-linear equation:
${x}^{2} = \sqrt{3} y$
First Make The Equation To Be In Terms of Y

*Divide Both sides by
$\sqrt{3}$
$\frac{ {x}^{2} }{ \sqrt{3} } = \frac{ \sqrt{3} y}{ \sqrt{3} }$
*Simplify
$\frac{ {x}^{2} }{ \sqrt{3} } = y$
You shouldn't keep a radical in the denominator, however we leave it for the purpose of the reciprocal.

*Take The Reciprocal Of Both Sides
$\frac{ \sqrt{3} }{ {x}^{2} } = \frac{1}{y}$
A Linear Equation Takes The Format:
$y = mx + b$
So,
$\frac{1}{y} = y$
$b = 0$
$m(slope) = \frac{ \sqrt{3} }{x}$
$x = \frac{1}{x}$
Resulting in :
$\frac{1}{y} = \frac{ \sqrt{3} }{x} (\frac{1}{x} ) + 0$

4 0

2 years ago

Which scenario best matches the inequality x > 3? A. Joanna needs to be in bed by 10 p.M. It's now just past 7 p.M. How many

goldfiish [28.3K]

Answer:

Step-by-step explanation:

If Ricardo started studying at 4 p.m and for sure will not stop until after 7 p.m, that means that he will be studying for 3 hours at least, and maybe even longer. So the time he will spend studying is at least 3 hours.

Therefore, x>3, where x is the time Ricardo will spend studying.

3 0

2 years ago

$813.60 is what percent of $1,800? 221.2% 45.2% 0.452% 2.21%

iragen [17]

I hope this helps you

813,60 = ?%.1800

?/100.1800=813,60

?=813,60/18

?=45,2

5 0

2 years ago

Read 2 more answers

If X=2 y=-1 z=3 Find the value of a. 2y3(cube) z2(square)

qaws [65]

Step-by-step explanation:

2y³z²

2(-1)³(3)²

=2(-1)(9)

=-18

6 0

2 years ago