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
mezya [45]
3 years ago
8

Solve the system with the addition method: Write your answer in the form

Mathematics
1 answer:
Sidana [21]3 years ago
3 0

since there is already 2 7x's we can multiply a positive 1 so we can eliminate the 7x's

+1 (-7x-4y=-7) = 7x+4y=7

7x+4y=7

-7x-2y=-4

2y=3

divide 2 on both sides to isolate y

y=2/3

now to find x you will have to plug in 2/3 to one of the original equations

-7x-2(2/3)=-4

-7x-1.33=-4

add 1.33 to both sides

-7x=2.67

divide -7 on both sides

x=0.38

hope this helped hon:)

You might be interested in
Joannie lent $200 to her sister. Four years later, her sister repaid her in full with $228. What simple annual interest rate did
aleksley [76]
The Answer: is B) 3.5

Explanation:
7 0
2 years ago
What is the range of the function on the graph?
erik [133]
The range of a function is the set of y-coordinates of all the points in the graph of the function.
6 0
3 years ago
Anyone 100% kno dis it’s for a test
Sergio [31]

Answer C

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Write an equation in point-slope form of the line that passes through the given point and has the given slope. (3, 2); m = 2/3
77julia77 [94]

Answer:

y - 2 = \frac{2}{3}(x-3)

Step-by-step explanation:

Point-slope form: y - y1 = m(x - x1)

Slope: \frac{2}{3}

Point: (3, 2) = (x1, y1)

To write the equation in point-slope form, we need to know the values of the slope and one point. Since we've already been given those values, all we have to do is input them into the equation:

y - y1 = m(x - x1)

y - 2 = \frac{2}{3}(x-3)

The equation in point-slope form is: y - 2 = \frac{2}{3}(x-3)

4 0
3 years ago
You have a summer job that pays time and a half for overtime. that is if you work more than 40 hours per week,your hourly wage f
Nataliya [291]
Your pay is described by a piecewise function p(t) where t is hours worked.
p(t)=\left\{\begin{array}{rcl}7t&\mbox{for}&t\leq40\\10.5t-140&\mbox{for}&t>40\end{array}\right.

The domain of this function is the number of hours you can work in a week—zero to 168. The range is the set of values p(t) can take on, which we have said is p(0) to p(168). This problem, however, is asking for the range for a typical 40-hour week. That will be p(0) to p(40): the interval [0, 280].
8 0
3 years ago
Other questions:
  • Ritchie wants to paint his bedroom ceiling and four walls. Both the ceiling and walls are 8 by 8 feet. A gallon of paint covers
    7·1 answer
  • X y
    5·1 answer
  • John is creating a Thanksgiving display at the store where he works, using only canned pumpkin and canned green beans. He needs
    6·1 answer
  • Choose the correct sum of the polynomials (6x3 − 8x − 5) + (3x3 + 6x + 2). 9x3 − 2x − 3 3x3 + 2x + 3 3x3 − 2x − 3 9x3 + 14x + 3
    10·2 answers
  • a person is scheduled to pick up 9 crates each crate weighs 1/4 how much weight will the delivery have
    9·2 answers
  • How many times larger is 3 x 10 to the power of negative 5 end exponent than 6 x 10 to the power of negative 12 end exponent
    14·1 answer
  • For the arithmetic sequence beginning with the terms (1, 4, 7, 10, 13, 16...},
    9·1 answer
  • Can someone help me pls
    13·2 answers
  • In angle PQR, angleQ=70 angle R=45 then angleP=.....<br>​
    8·1 answer
  • I need help please!! Please answer with an explanation steps by steps please
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!