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
Airida [17]
3 years ago
7

Given the system of equations, what is the solution?

Mathematics
1 answer:
Elena L [17]3 years ago
7 0

Answer:

{(-34/7, -16/7)}

Step-by-step explanation:

Rearrange values, multiply to solve for x.

(5) 2y = 3x + 10

(-2) 5y = 4x + 8

Solve for x.

10y = 15x + 50 ↓

-10y = -8x -16

Combine and evaluate.

0 = 7x + 34

Subtract 34 from both sides.

7x = -34

Divide both sides by 7.

x = \frac{-34}{7}

Plugin x value into either equation to solve for y.

2y = (3 × \frac{-34}{7}) + 10

2y = \frac{-102}{7} + 10

2y = \frac{-32}{7}

y = \frac{-16}{7}

You might be interested in
joe and james are selling pies for a school fundraiser. Customers can buy blueberry pies and blackberry pies. Joe sold 5 blueber
dimulka [17.4K]
This is a system of equations problem.

Blueberry = X, blackberry = Y

Joe:
5x + 10y = 135

James:
x + 9y = 104

Let’s isolate x from James’ equation.
x = 104 - 9y

Now substitute that into the first equation.
5(104 - 9y) + 10y = 135

520 - 45y + 10y = 135

-35y = -385

y = -385/-35. The negatives cancel out, leaving us with $11 for blackberries.

Now we can substitute that value into James’s equation.

x + 9(11) = 104

x = 104 - 99

x = $5

Final answer: Blueberry pies cost $5, blackberry pies cost $11.
3 0
3 years ago
A car dealership offers a special interest rate of 3.5%. What is 3.5% written as a decimal? A. 0.0035 B. 0.035 C. 0.35 D. 35.0
wel
Make 3.5% out of 100: \frac{3.5}{100} 3.5÷100=0.035. So the Answer is B. 0.035.
7 0
3 years ago
How does or what does a organism gain from having a stem cell
Ivenika [448]
Their potential to regenerate and repair damaged tissue. Some current therapies, such as bone marrow transplantation, already make <span>use of </span>stem cells<span> and their potential for regeneration of damaged tissues.</span>
8 0
4 years ago
Lee needed to make drapes the length from the floor to the top of the window. The wall beneath the window had the height of 2 2/
Tatiana [17]
Since drapes have to be covered all over the window and the beneath of the window, both lengths have to be added.

(2 2/3) + ( 2 3/4) 
(8/3) + (11/4)
(32+33)/12
65/12
5 5/12
7 0
3 years ago
Which expression has the least value?<br> A. 3(33)<br> B. 0 31-33)<br> C. 0-31-33)<br> D. 3(3-3)
Deffense [45]

Answer:

I think it is C but can't be sure because B isn't clear.

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • A city sewer pipe has a diameter of 7 ft and a length of 100 ft. Find the volume of the pipe. Use 3.14 as
    9·2 answers
  • Is this statement always sometimes or never true. If x and y are supplementary angels then x is obtuse
    7·2 answers
  • Simplify:<br> ((6-3) + (5+5) / 2 =
    14·2 answers
  • Hello I need help with concavity of graphs. I have included a picture of the 4 problems I would love to be checked to see if the
    9·1 answer
  • Complete the following equation using &lt; &gt; or = 120% ___ 1
    5·1 answer
  • Expression in expanded form for 3.339
    11·1 answer
  • Tyler is going to the movie theater with two of his friends. In addition to purchasing a ticket, each of them also buys a box of
    12·1 answer
  • Fifty less than three times a number is -20. Find the number.
    15·2 answers
  • joan worked 6 hours on monday, 4 hours on wendsday and hours and 8 hours on friday. her gross pay for all 3 days was $130.50. wh
    9·1 answer
  • (ii) n is an integer and 6n +5 &lt;20
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!