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
blsea [12.9K]
3 years ago
12

Solve this system of equations using substitution:

Mathematics
1 answer:
irina [24]3 years ago
3 0
The substitution method means you replace the variable in one equation with the other equation, so your new equation is x+4x-8=10. Add 10 to both sides to get 5x=18. Divide both sides by 5 to get x=3.6. This is a weird equation, but then to get y, work backwords. 3.6 times 2=7.2. 7.2-4=3.2 y=3.2. Finally to finish checking solve the equation as normal. 3.6+6.4=10. I hope this helped! Please give brainliest!
Your final answer is x=3.6 y=3.2
You might be interested in
If you vertically compress the absolute value parent function, f(x) = |x1, by a
Katena32 [7]

Answer:

A

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A stone falls from the top of a cliff into the ocean. In the air, it had an average speed of 16 m/s slash, s. In the water, it h
Semmy [17]
Total distance = sum of velocity * time for both legs of the journey; let the time taken in air be t hence time taken in water is 12-t 127 = 16*t + 3(12-t) 127 = 16t + 36 - 3t 127 - 36 = 16t - 3t 91 = 13t t = 91/13 = 7 seconds  Hence time taken in air = 7 seconds time taken in water is 12 - 7 =<span> 5 seconds</span> checking; 16*7 + 3*5 = 127
7 0
4 years ago
Please help!!!! Geometry
alukav5142 [94]
The answer is D

They have the same slope but different yint.
 
parallel lines never intercept<span />
3 0
4 years ago
In isosceles triangle RST below, what is the value of y?
son4ous [18]

Answer:

y =71

Step-by-step explanation:

The sum of the angles of a triangle add to 180

y+y+38 = 180

Combine like terms

2y +38 =180

Subtract 38 from each side

2y+38-38 =180-38

2y = 142

Divide each side by 2

2y/2 =142/2

y = 71

7 0
3 years ago
Read 2 more answers
Number three, I’m sorry guys but I don’t get it. Yeah, I know it’s easy, I know that to but I don’t understand it.
gladu [14]

Answer:

291

Explanation:

an hour contains 60 minutes and because you want to know the shuttle is moving per minute you also divide 17,460 by 60 so 17,460÷60= 291 miles per minute.

5 0
3 years ago
Other questions:
  • Can someone please help me with my homework
    15·1 answer
  • Nathan's city took a survey about a plan for a new park. Of the people surveyed, 159 liked the plan for the park and 141 did not
    9·1 answer
  • HELP PLEASE SOMEONE ASAP
    5·2 answers
  • Sam wanted to buy candy for all of his friends to share at lunch. one pound of chocolate cost 6.95 , but Sam only needs 0.6 of a
    8·2 answers
  • Find the value of t, rounded to the nearest tenth
    15·1 answer
  • Tim Worker estimates his taxable income will be $7,000. He is paid twice a month or 24 times a year. Because Tim has only one so
    12·1 answer
  • How will you know the nature of the roots of the given quadratic equation?
    6·2 answers
  • 54,372,000,000,000 in scientific notation
    8·2 answers
  • A pet home owner wants to keep the ratio of cats to dogs at 3:5. She has 21 cats, how many dogs are there in the pet home?
    10·2 answers
  • I need help please thanks​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!