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3 years ago

What is alergbra about and why ?

Mathematics

1 answer:

Pie3 years ago

4 0

Answer:

Simply put, algebra is about finding the unknown or putting real life variables into equations and then solving them. ... Algebra can include real numbers, complex numbers, matrices, vectors, and many more forms of mathematic representation

Step-by-step explanation:

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Which is equal to 3/2 times 3/4

prisoha [69]

(3/2)*(3/4) = (3*3)/(2*4)=(9/8) which is the same as 1 whole 1/8

3 0

3 years ago

Mariya was asked to solve StartFraction a over negative 13 EndFraction less-than-or-equal-to negative 16 and then graph the solu

lozanna [386]

Answer:

the answer is step 3 because the circle on the number line is open.

pls make mine as the Brainliest answer that would really help

8 0

4 years ago

Read 2 more answers

1. A store manager marked up the price of a $12 clock by 20%. What is the new price of the clock?

Anon25 [30]

Answer:

1) new price of the clock is $14.4

2) Kyra scored 70% marks

3) 43.75% students are not eighth graders

Step-by-step explanation:

1. A store manager marked up the price of a $12 clock by 20%. What is the new price of the clock?

Price of Clock = $12

Mark up = 20%

We need to find new price of clock.

The price of clock can be found by finding 20% of 12 and then adding that amount in original price.

So, finding 20% of 12

$20\% of 12 \\=\frac{20}{100}\times 12\\=2.4$

So 20% of 12 is 2.4

Now finding new price:

New Price = Actual Price + Mark up

New Price = 12 + 2.4

New Price = 14.4

So, new price of the clock is $14.4

2. On a math quiz, Kyra answered 7 of 10 questions correctly. Express her quiz score as a percent.

Total questions = 10

Correct answers = 7

We need to express her quiz score as percent

It can be found using formula: $Percent Score = \frac{Obtained\:Marks}{Total\:Marks}\times 100\%\\$

Putting values and finding percentage

$Percentage = \frac{Obtained\:Marks}{Total\:Marks}\times 100\%\\\\Percentage = \frac{7}{10}\times 100\%\\Percentage = 70\%$

So, Kyra scored 70% marks

3. 96 students are enrolled in the Dance Program at Castillero. Of those students, 54 are eighth-graders. The remaining students are 6th or 7th graders. What percentage of the students are not eighth graders?

Total Students = 96

Number of eighth-graders students = 54

Remaining students = 96 - 54 = 42

So, 42 students are 6th or 7th graders

We need to find percentage of the students are not eighth graders.

$\frac{42}{96}\times 100\%\\=43.75\%$

So, 43.75% students are not eighth graders

4 0

3 years ago

Fill in the table using this function rule. y=-3x+5

lukranit [14]

Answer:

The table in the attached figure

Step-by-step explanation:

The picture of the question in the attached figure N 1

we have

$y=-3x+5$

Substitute the different values of x in the linear equation, to obtain the different values of y in the table

For x=-2 ---> $y=-3(-2)+5=11$

For x=-1 ---> $y=-3(-1)+5=8$

For x=-0 ---> $y=-3(0)+5=5$

For x=1 ---> $y=-3(1)+5=2$

The table in the attached figure N 2

3 0

3 years ago

Find in simplest radical form, the length of the line segment joining points (1,5) and (3,9)

yaroslaw [1]

$\bf ~~~~~~~~~~~~\textit{distance between 2 points}
\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~ 1 &,& 5~) 
% (c,d)
&&(~ 3 &,& 9~)
\end{array}~~~ 
% distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
d=\sqrt{(3-1)^2+(9-5)^2}\implies d=\sqrt{2^2+4^2}\implies d=\sqrt{20}
\\\\\\
d=\sqrt{4\cdot 5}\implies d=\sqrt{2^2\cdot 5}\implies d=2\sqrt{5}$

4 0

4 years ago