1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aliya0001 [1]
4 years ago
8

Copy link

Mathematics
1 answer:
marysya [2.9K]4 years ago
5 0

Answer:

40

Step-by-step explanation:

if you used cross products you'd pair 8 with 100 and n with 20

That written out would be 8(100)=20n

8(100)=800

800=20n

Divide on both sides

800/20=40

20/20 (cancels out)

Therefore n=40

You might be interested in
Sup peeps<br> Can someone find the area of this plz
ziro4ka [17]

Answer:

<h2><em><u>448</u></em><em><u> </u></em><em><u>sq.ft</u></em></h2>

Step-by-step explanation:

The following figure is a <em><u>trapezium</u></em><em><u>, </u></em>

<em><u>So</u></em><em><u> </u></em><em><u>Given</u></em><em><u>,</u></em>

Parallel sides of the trapezium = 17ft and 39ft

Height of the trapezium = 16ft

<em><u>Therefore</u></em><em><u>, </u></em>

Area of the trapezium

=  \frac{1}{2}  \times (sum \: of \: parallel \: sides) \times height

=  \frac{1}{2}  \times (17ft + 39ft) \times 16ft

=  \frac{1}{2}  \times 56ft \times 16ft

= 56ft \times 8ft

= 448 {ft}^{2}

<em><u>Hence</u></em><em><u>,</u></em>

<em><u>448</u></em><em><u> </u></em><em><u>sq.ft</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>area</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>trapezium</u></em><em><u> </u></em><em><u>(</u></em><em><u>Ans</u></em><em><u>)</u></em>

7 0
3 years ago
a bank loaned out $13,000 part of it at a rate of 8% per year and the rest at 16% per year. if the interest received in one year
slava [35]

Answer:   $725

<u>Step-by-step explanation:</u>

Let x represent the amount invested at 8%, then $13,000 - x is the amount invested at 16%.

0.08(x) + 0.16(13,000 - x) = 1500

0.08x  +   2080  -  0.16x = 1500

                 2080  -  0.08x = 1500

                             - 0.08x = -580

                                       x = 7250

7 0
3 years ago
Un triángulo rectángulo tiene un área de 84 pies2 y una hipotenusa de 25 pies de largo. ¿Cuáles son las longitudes de sus otros
jolli1 [7]

Answer:

7 feet and 24 feet

Step-by-step explanation:

In the right triangle, the hypotenuse is 25 feet long. The area of this triangle is 84 square feet.

Let x feet and y feet be the lengths of triangle's legs.

By the Pythagorean theorem,

x^2+y^2=25^2\\ \\x^2+y^2=625

The area of the right triangle is half the product of its legs, thus

84=\dfrac{1}{2}xy\\ \\xy=168

Solve the system of two equations:

\left\{\begin{array}{l}x^2+y^2=625\\ \\xy=168\end{array}\right.

From the second equation:

x=\dfrac{168}{y}

Substitute it into the first equation:

\left(\dfrac{168}{y}\right)^2+y^2=625\\ \\168^2+y^4=625y^2\\ \\y^4-625y^2+168^2=0\\ \\D=(-625)^2-4\cdot 168^2=(625-2\cdot 168)(625+2\cdot 168)=289\cdot 961=17^2\cdot 31\\ \\\sqrt{D}=17\cdot 31=527\\ \\y^2_{1,2}=\dfrac{-(-625)\pm 527}{2}=49,\ 576\\ \\y_1=7,\ y_2=-7,\ y_3=24,\ y_4=-24

The length of the leg cannot be negative, so

y_1=7\Rightarrow x_1=\dfrac{168}{7}=24\\ \\y_2=24\Rightarrow x_2=\dfrac{168}{24}=7

6 0
3 years ago
Ok so I need help on this ,asap plz :)
iragen [17]
Number 1 is 4 radical 10

4 0
3 years ago
How do you graph 24x−6y=18
nikklg [1K]

Answer:

You will graph a function with the equation being y = 4x - 3, to plot this function read step by step explanation.

Step-by-step explanation:

First we have to find the equation of the line so we do....

24x - 6y = 18

24x = 18 + 6y

6y = 24x - 18

y = 4x - 3

Now that we know the equation we just have to find two point by using this equation and connect them between each other in order to graph the function represented by this equation. For example

For x = 0

y = 4x - 3

y = -3

So we know that there is a point (0, - 3)

For x = 1

y = 4x - 3

y = 4 - 3

y = 1

So we know that there is a a point  (1, 1)

Connect the two point and you will get the function graph

6 0
4 years ago
Other questions:
  • Which of the following correctly uses absolute value to show the distance between −60 and 13?
    5·2 answers
  • Anyone know this? Any help would be appreciated
    12·2 answers
  • Omar shaded a model to show the part of the lawn that he finished mowing. What fraction names the shaded parts ( 8 eighths with
    8·2 answers
  • A plane is flying at an altitude of 32,000 feet. The distance between the plane and a radio tower on the ground is 50,000 feet.
    10·2 answers
  • Given that the square root of 225 is 15 and the square root of 256 is 16, which number is closest to the
    12·1 answer
  • A random sample of the price of gasoline from 40 gas stations in a region gives an average price of $3.69 and sample standard de
    6·1 answer
  • Help asap I’m in class I only need help with number 49!!!
    14·1 answer
  • -8 - 10 x (-1) + 7 x (-1)
    14·2 answers
  • Does anybody know both of these answere
    11·2 answers
  • 2/7 x 19/4 please help me !!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!