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
Lapatulllka [165]
3 years ago
7

Solve the system 3x+y=7 and -2x-y=9 X=7 x=16 x=9 X=1

Mathematics
1 answer:
igomit [66]3 years ago
3 0

Answer:

Step-by-step explanation:

3x + y = 7

-2x - y = 9

x = 16

answer is B

3(16) + y = 7

48 + y = 7

y = -41

You might be interested in
Help a brudda out its easy work bruddas
vfiekz [6]

Answer:

Line 1 is y=-x-2

Line 2 is y=-\frac{1}{5}x+2

Slope of Line 1 is -1 Slope of Line 2 is -\frac{1}{5}

Y-intercept of Line 1 is -2 and Y-Intercept of Line 2 is 2

Following statements true: 1, 2, 4

Step-by-step explanation:

6 0
2 years ago
If m∠JKM = 43, m∠MKL = (8 - 20), and m∠JKL = (10x - 11), find each measure.
Brut [27]

Correct Question: If m∠JKM = 43, m∠MKL = (8x - 20), and m∠JKL = (10x - 11), find each measure.

1. x = ?

2. m∠MKL = ?

3. m∠JKL = ?

Answer/Step-by-step explanation:

Given:

m<JKM = 43,

m<MKL = (8x - 20),

m<JKL = (10x - 11).

Required:

1. Value of x

2. m<MKL

3. m<JKL

Solution:

1. Value of x:

m<JKL = m<MKL + m<JKM (angle addition postulate)

Therefore:

(10x - 11) = (8x - 20) + 43

Solve for x

10x - 11 = 8x - 20 + 43

10x - 11 = 8x + 23

Subtract 8x from both sides

10x - 11 - 8x = 8x + 23 - 8x

2x - 11 = 23

Add 11 to both sides

2x - 11 + 11 = 23 + 11

2x = 34

Divide both sides by 2

\frac{2x}{2} = \frac{34}{2}

x = 17

2. m<MKL = 8x - 20

Plug in the value of x

m<MKL = 8(17) - 20 = 136 - 20 = 116°

3. m<JKL = 10x - 11

m<JKL = 10(17) - 11 = 170 - 11 = 159°

3 0
3 years ago
I need help on this and more so can sb help me ?..
nignag [31]

Answer:

Its the 2nd one

Step-by-step explanation:

Simplify the exponents and then multiply

4 0
3 years ago
Sarah's hair appointment is 30 miles away. How fast must she travel to get there in 60 minutes?
Fudgin [204]

Answer:

30 miles an hour

Step-by-step explanation:

6 0
3 years ago
Where are my taurus’s At??
lozanna [386]

Answer:

im a scorpio but my sister in law is a taurus... :)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Question 1 (5 points): Consider the system of linear equations x1 − 4x2 − x4 = −7 x2 − 2x4 = 3 x4 + 2x5 = 3 (a) Write down the c
    12·1 answer
  • What is a null set ?
    10·1 answer
  • How do you calculate the perimeter of a circle
    13·1 answer
  • A box has dimensions of 19 inches long, 1.7 feet wide, and 6 inches high. What is the volume of the box? The formula for the vol
    7·2 answers
  • Can someone help me figure this out?​
    7·2 answers
  • A sample of a radioactive isotope had an initial mass of 730 mg in the year 2000 and
    13·1 answer
  • Your cell phone plan costs $24.99 per month plus $0.13 for each text message you send or receive. You have at most $28 to spend
    6·1 answer
  • What value is equivalent to 32 · 43?
    11·2 answers
  • Jorge makes fruit snacks for his friends. He uses 1 1/2 apples to make 3 fruit snacks.
    11·1 answer
  • c) 200 people are asked about three brands of beverages Coffee, Tea and Chocolate. 36 like Coffee only, 46 like Coffee but not T
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!