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
lianna [129]
3 years ago
10

Solve the following system of equations by the substitution method. 2x = 10y - 8 3x + 4y + 5 = 0

Mathematics
1 answer:
Natali [406]3 years ago
5 0

Answer:

x = -\frac{41}{19}

y = \frac{7}{19}

Step-by-step explanation:

2x = 10y - 8

3x + 4y + 5 = 0

2x = 10y - 8

x = 5y - 4

3x + 4y + 5 = 0

3 ( 5y - 4 ) + 4y + 5 = 0

19y - 7 = 0

19y = 7

y = \frac{7}{19}

x = 5y - 4

x = 5 ( \frac{7}{19} ) - 4

x = -\frac{41}{19}

You might be interested in
Find the final price or each product after sales tax is applied. Round to the nearest cent. Potted Plant: $17.29 Sales Tax: 3%​
Margaret [11]

Answer:

17.81 would be your answer.

Step-by-step explanation:

You would do 17.29 x 1.03 to get the price after sales tax is added which would be 17.81

4 0
3 years ago
In the following addition problem, the letters A,B,C stand for three different digits. What digits should replace each letter?
Eva8 [605]
Alright so I got A=4, B=5 and C=9

   A B C          
+ A C B
----------
   C B A

   459
+ 495
--------
   954


8 0
3 years ago
What is an equivalent expression for 7times plus 56.
krok68 [10]
<em>t would be 8 if you are multiplying .</em>
7 0
3 years ago
Read 2 more answers
What is the solution of the system? Use the substitution method.
cricket20 [7]
Start by isolating one of the variables
x=-4y+2
Sub x into the other formula and solve for the y value of the solution.
3(-4y+2)+2y=11
-12y+6+2y=11
-12y+2y=11-6
-10y=5
y=-1/2
Sub the y value into the x formula you created.
x=-4(-1/2)+2
x=2+2
x=4
Therefore the solution is (4,-1/2) I think the answer is B unless the y value is actually -12.
Hope this helps :)
8 0
3 years ago
Kevin is baking bread for a family function. The initial temperature of the oven is twice the room temperature. He knows that ye
Elden [556K]

What are you asking? Are you asking for the room temperature? Or the oven temperature?

Room temperature=45° F or 50 ° F.

Oven temperature = 90° F to 95° F.

6 0
3 years ago
Other questions:
  • (2m+3)(4m-3)=0 solve by factoring
    15·1 answer
  • On June 8, 1992, a crop circle with an 18-meter radius was found in a wheat field near Szekesfehervar, 43 miles southwest of Bud
    15·1 answer
  • What number is 15% of 130
    12·2 answers
  • mark is a carpenter he is trying to decide how much money to charge for his next job to do the job he will need to buy supplies
    15·1 answer
  • What is the perimeter of nadia 's square
    12·1 answer
  • 25 students in class A did a science exam.
    11·1 answer
  • The cost of 5 books and 4 pens is 115. if the cost of 1 book is RS 15 ,find the cost of 7 pens​
    15·1 answer
  • Nancy has worn a blue skirt on 8 of the last 20 days.
    10·2 answers
  • Part 1 of 2
    12·1 answer
  • Rhombus J K L M is shown. The length of J K is 2 x + 4 and the length of J M is 3 x.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!