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
timurjin [86]
4 years ago
8

Given the system of linear equations.

Mathematics
1 answer:
Fofino [41]4 years ago
6 0

Answer:

x=-1, y=8

Step-by-step explanation:

The given system is

-x+y =7

6x+y=14

We make y the subject in the first equation to get:

y=x+7

We put y=x+7 into 6x+y=14 to obtain

6x + x + 7 = 14

6x+x=14-7

7x=7

x=1

We now put x=1 into y=x+7

y =  1+ 7 = 8

The solution is x=1, y=8

Part B

We now verify

-1+8=7 ....True

6(1)+8=14....True

You might be interested in
Which of the following is equal to the rational expression when x doesnt equal 5? x^2 - 25/ x - 5
scoundrel [369]
The complete question in the attached figure

we have that
(x²<span> - 25)/ (x - 5)

we know
</span>(x² - 25)-------------> (Difference of two squares)----------> (x+5)*(x-5)

then

(x² - 25)/ (x - 5)<span>-------> (x+5)*(x-5)/(x-5)------------> (x+5)

the answer is the option B)
(x+5)</span>

4 0
3 years ago
Read 2 more answers
Find the surface area, in square centimeters, of
nydimaria [60]

The surface area of the hemisphere with radius r = 19 cm. is 3400.62 square centimeters

<h3>How to determine the surface area?</h3>

The radius is given as:

r = 19

The surface area of a hemisphere is:

Area = 3πr²

So, we have:

Area = 3 * 3.14 * 19²

Evaluate

Area = 3400.62

Hence, the surface area of the hemisphere is 3400.62 square centimeters

Read more about surface areas at:

brainly.com/question/6613758

#SPJ1

8 0
2 years ago
What is the value of the expression below when y = 4 and y = 2? 4x + 10y
MrRa [10]

Step-by-step explanation:

I ᴛʜɪɴᴋ ᴛʜɪs ǫᴜᴇsᴛɪᴏɴ ɪs ᴡʀᴏɴɢ. ᴄʜᴇᴄᴋ ʏᴏᴜʀ ǫᴜᴇsᴛɪᴏɴ ᴏɴᴄᴇ ᴘʟᴇᴀsᴇ.

3 0
3 years ago
Y+2=-3(x+2) answer fast please i need it now <br> \
Zepler [3.9K]

Answer:

y + 2 = -3(x + 2)

y + 2 = -3x - 6

y = -3x - 8

y + 3x = - 8

8 0
3 years ago
Problem 3
Firdavs [7]
Isosceles triangle = 2 same angle (x) + 1 different angle.

Therefor, 2x+72 = 180.

90-36 =x,
X= 54.
7 0
3 years ago
Other questions:
  • Grayson has already prepared 16 kilograms of dough and will continue preparing 1 kilogram
    7·1 answer
  • If the diameter of a microscope's field is 0.12mm, how wide is an object that fills one-quarter of the field? (Explain how you'v
    10·1 answer
  • Min is twice as tall as her brother . If min is 5feet 3 inches tall how tall is her brother
    14·1 answer
  • Rewrite the expression<br> as a<br> single rational number,<br> 4<br> 80 + (-22<br> 15<br> )
    10·1 answer
  • If a varies directly as the square of b, and a=5 when b=7, find a when b=3. when b=3 a=​
    13·1 answer
  • 3 = [?]<br> 60°<br> 120° 60°
    14·1 answer
  • -3, 1, 5, 9, ...
    15·1 answer
  • 48 - 2C = 88 solve for C
    15·2 answers
  • 12
    6·1 answer
  • Does changing the compound inequality x&gt;-3 and x&lt;3 from and to or change the solution set? Explain
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!