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
Lerok [7]
3 years ago
7

3x+y=7 6x+4y=22 can somebody help me solve this problem?

Mathematics
1 answer:
swat323 years ago
5 0
Hey there!

\boxed{x=1;y=4}

3x + y = 7 \\ \\ 
    6x + 4y = 22

y = -3x + 7 \\ \\ Plug \ this \ in \ for \ variable \ (y) \ in \ equation \ \\ \\ 

       6x + 4*(-3x+7) = 22 \\ \\ 
       -6x = -6 \\ \\ 6x=6 \ x+1 \\ \\ x=1 \ y=-3x+7 \\ \\ \boxed{y=-3(1)+7=4} \\ \\ \boxed{\boxed{x=1;y=4}}

I hope this helps you!
You might be interested in
The line plot below shows the number of juice boxes Sandy drank on specific days. On which dates did Sandy drink the most and th
djverab [1.8K]

Answer:

a

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A ship is sailing due north. At a certain point the bearing of a lighthouse is N 42.8∘E and the distance is 10.5. After a while,
bija089 [108]

Answer:

How far did the ship travel between the two observations of the lighthouse  = 9.29

Step-by-step explanation:

the first step to answer this question is drawing the illustration as the attachment.

P is the ship, R is the light house and Q is the bearing.

PR is the distance between the ship and the light house, PR = 10.5

∠P = 42.8°, ∠Q = 59.7°

Thus, ∠R = 180° - ∠P  - ∠Q

               = 180° - 42.8°- 59.7°

               = 77.5°

PQ is the the distance of the ship moving. We can use the sinus equation

\frac{PR}{sin R} = \frac{PQ}{sin Q}

\frac{10.5}{sin 77.5°} = \frac{PQ}{sin 59.7°}

PQ = (\frac{10.5}{Sin 77.5°})(sin 59.7°)

     = 9.29

5 0
2 years ago
| x | &lt; 2 <br><br> solve the inequality and then graph the solution
anzhelika [568]

Answer:

Any number smaller than 2

Step-by-step explanation:

You would graph this by wrighting a solid, filled in circle with an arrow point toward the negative numbers, because those numbers are smaller than 2

3 0
2 years ago
200 is 10 times as much as blank and 1 tenth of
anzhelika [568]

Answer:

200 is 10 times as much as 20 and 1 tenth of 2,000

Step-by-step explanation:

Divide 200 by 10 and you'll get 20 and multiply it by 10 to get 2,000.

8 0
3 years ago
Read 2 more answers
A baseball hat for $22.90 at 5% sales tax
Alexus [3.1K]
22.90*1.05=24.045
sales tax is 5% added to 100% of the original cost making the actaul cost including tax $24.045 
8 0
2 years ago
Read 2 more answers
Other questions:
  • What is the value of x in simplest radical form ?
    11·1 answer
  • 6 times a larger number (so 6y) is equal (=) to the sum of a snaller number and 18 (x+18)
    10·2 answers
  • a fish tank in the shape of a rectangular prism measures 100 x 60 x 40/The water level reached the midpost of the base (50cm mar
    15·1 answer
  • Find the distance between the two points. Enter the number that goes beneath the radical symbol. (PICTURE ABOVE]​
    6·1 answer
  • I need some help with this
    11·1 answer
  • A custom spends a total of $20.50 at the movie theater. The customer buys a $13.50 movie tickets and 2 snacks costs the same amo
    13·1 answer
  • Can you check if this is right?
    10·2 answers
  • The grocery store sells kumquats for $3.75 a pound and Asian pears for $2.25 a pound. Write an equation in standard form for the
    14·1 answer
  • A rectangular field is four times as long as it is wide. If the perimeter of the field is 520 yards, what are the field's dimens
    5·1 answer
  • On the first day of a family road trip, Tamara's family travels 540 miles.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!