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
Lelechka [254]
2 years ago
7

13+2x+y+90=180 4x+1+8x-2y=180

Mathematics
1 answer:
kvv77 [185]2 years ago
7 0

Answer:

​x=

​16

​

​333

​​  

​y=

​8

​

​283

​​  

Step-by-step explanation:

1 Solve for yy in 13+2x+y+90=18013+2x+y+90=180.

y=-2x+77y=−2x+77

2 Substitute y=-2x+77y=−2x+77 into 4x+1+8x-2y=1804x+1+8x−2y=180.

16x-153=18016x−153=180

3 Solve for xx in 16x-153=18016x−153=180.

x=\frac{333}{16}x=

​16

​

​333

​​  

4 Substitute x=\frac{333}{16}x=

​16

​

​333

​​  into y=-2x+77y=−2x+77.

y=\frac{283}{8}y=

​8

​

​283

​​  

5 Therefore,

\begin{aligned}&x=\frac{333}{16}\\&y=\frac{283}{8}\end{aligned}

​

​

​​  

​x=

​16

​

​333

​​  

​y=

​8

​

​283

​​  

​​  

Done

You might be interested in
Toms weekly salary increased from $240 to $270. what was the percent of change?
8_murik_8 [283]

Answer:

12.5%

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the length of STV in the figure.
o-na [289]

Answer: The length of STV is about 76.83 in.

Step-by-step explanation:

The length of an arc is given by :-

l=\frac{\theta}{360^{\circ}}\times2\pi r, where r= radius of the cirle, \theta is the central angke made by arc.

As per given , Radius of the circle : r= 20 in

Central angle of arc SCV = 140^{\circ}

Then, Central angle of arc SCV = 360^{\circ}-140^{\circ}=220^{\circ}

Then, the length of the arc STV =

l=\frac{220^{\circ}}{360^{\circ}}\times2(\frac{22}{7}) (20)\\\\=\frac{11}{18}\times\frac{880}{7}\\\\=76.8253968254\approx76.83\text{ in.}

Hence, the length of STV is about 76.83 in.

5 0
3 years ago
4 and 5/6 - 1 and 5/6 ? help me pls ! i love you muah i mean
Otrada [13]
4 \frac{5}{6} -1 \frac{5}{6}\\
\frac{29}{6}-\frac{11}{6}\\
\frac{18}{6}\\\\
3
8 0
3 years ago
Read 2 more answers
Don’t get it help me !
photoshop1234 [79]

Answer:

a > 12

Step-by-step explanation:

To ride the go karts you need to be OVER 12 years old. We are going to use < and > because you can't be 12 and younger. The hint is OVER because this essentially means that the variable a HAS to be bigger than 12. Thus is why the ineuality is a > 12.

Best of Luck!

8 0
2 years ago
Thomas buys a cardboard sheet that is 8 by 12 inches. Let x be the side length of each cutout. Using complete sentences, explain
jasenka [17]

Answer: V = (12in - 2*x)*(8 in - 2*x)*x

Step-by-step explanation:

So we have a rectangular cardboard sheet, and we cut four squares of side length x in each corner so we can make a box.

Remember that for a box of length L, width W and height H, the volume is:

V = L*W*H

In this case, the length initially is 12 inches, but we remove (from each end) x inches of the length, then the length of the box will be:

L = 12 in - 2*x

For the width we have a similar case:

W = 8in - 2*x

And te height of the box will be equal to x, then:

H = x

This means that the volume is:

V = (12in - 2*x)*(8 in - 2*x)*x

Here we can see the connection between the cutout and the volume of the box

7 0
3 years ago
Other questions:
  • Can someone help me with this please?
    6·1 answer
  • The ________ is a basic syst?me international (metric system) unit of mass.
    7·1 answer
  • What is the exponential function graphed in the figure?
    5·1 answer
  • I need help with this please.
    12·1 answer
  • How do I solve 8, 9, and 10?
    11·1 answer
  • The table below shows the lunch
    15·1 answer
  • Please answer sincerely thank you
    7·1 answer
  • I don't understand? (Questions 1 &amp; 3)
    6·1 answer
  • What is 1 divided by 1/6
    10·2 answers
  • Which is the best description of an extraneous solution?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!