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
Ray Of Light [21]
3 years ago
7

What is the solution to the system of equations 3x+2y=39 5x-y=13

Mathematics
1 answer:
Marta_Voda [28]3 years ago
8 0

3x + 2y = 39

5x - y = 13

Multiplying the last by two:

10x - 2y = 26

Adding to the first

13x = 65

x = 5

y = 5x-13 =25-13=12


Check:

3(5)+2(12)=39 good

5(5)-12=13 good


Answer: x=5, y=12


You might be interested in
A polynomial function has a zero at 4 (multiplicity 3) and 0 (multiplicity 1)
Maslowich

Answer:

Y=3x(x-4)

Step-by-step explanation:

4 0
2 years ago
A car starts a journey with a full tank of gas. The equation y=16 - 0.05x relates the number of gallons of gas, y, left in the t
mr_godi [17]

A.  The y-intercept is y = −0.05 x + 16 and the x-intercept is x = −20y + 320

B. The x-intercept represents the number of miles the car has traveled.

C. The y-intercept represents the number of gas in gallons.

4 0
2 years ago
Please Help!!!
Komok [63]

Answer:

A = 63 m^2

Step-by-step explanation:

The area of a parallelogram is bh

A = bh

The base is 9 and the height is 7

A = 9*7

A = 63 m^2

3 0
2 years ago
Read 2 more answers
PLEASE HELP ANSWER ASAP NO LINKS PLZ
schepotkina [342]

Answer:

Y = 4

Step-by-step explanation:

12 - 8 = 4  and if you put another triangle it will look like a complete square, so you will need to subtract it     Hope it Helps  

7 0
2 years ago
Read 2 more answers
Multiply (x+4)(x-3).What is the product?
il63 [147K]
Since you have to distribute both numbers, you'll end up with x^2-3x+4x-12 then simplify and it is x^2+x-12
8 0
2 years ago
Other questions:
  • Kelly purchased a tablet that was 20% off the regular price of $1,000. If an
    11·1 answer
  • Lazy works at mc he gets paid 7.25 a hour, he works 5 days a week and 8 hours a day. How much will his check come out too?
    13·2 answers
  • The table below shows all of the possible outcomes for rolling two six-sided number cubes.
    12·2 answers
  • How do you show the work for 1162 divided by 4
    14·1 answer
  • Many studies have found an association between red meat consumption and an increased risk of chronic diseases. What is the relat
    7·1 answer
  • The are of a rectangle is 50m^2 , the length is 100m . Calculate the width
    9·2 answers
  • A.230<br> B.270<br> C.300<br> D.330
    7·1 answer
  • A wheel has a diameter of 16 inches. How far will the wheel travel after 5 rotations? Use 3.14 to approximate pi. Round your ans
    7·2 answers
  • The equation representa Function A and the graph represents Function B
    9·1 answer
  • Help yalllll question is in the pic
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!