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
avanturin [10]
2 years ago
14

What error did the student make?? PLEASE HELP ME

Mathematics
1 answer:
gregori [183]2 years ago
4 0

Answer:

He did an error because he multiplied equation 2 wrongly.

The correct multiplication should have been:

-6x + 9y = 6        Multiply equation by 2 by 3

Step-by-step explanation:

Given the system of equations

3x-5y=4

-2x+3y=2

This is what student solved

6x - 10y = 8        Multiply equation 1 by 2

-6x + 3y = 6        Multiply equation by 2 by 3

_________

       -7y = 14

          y = -2

He did an error because he multiplied the equation 2 wrongly.

The correct multiplication should have been:

-6x + 9y = 6        Multiply equation by 2 by 3

NOW, HERE IS THE CORRECT VERSION

6x - 10y = 8        Multiply equation 1 by 2

-6x + 6y = 6        Multiply equation by 2 by 3

_________

       -4y = 14

          y = -2/7

You might be interested in
Today only a table is being sold at a 15% discount. The sale price is $629
Musya8 [376]

Answer:

740

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the slope of (-4,-1) and (-2,-5)
UkoKoshka [18]

Answer:

The slope is -2.

Good Luck

6 0
2 years ago
Please help I'm not very sure.
Bogdan [553]
I think it's x2–1=0 because it's the only one that has -1 for origin of the ordinate
5 0
3 years ago
How to simplify 80/7
Korolek [52]

Answer:

11 \frac{3}{7}

Step-by-step explanation:

80 divided by 7 is 11 with a remainder of 3.

7 0
3 years ago
Read 2 more answers
HELP ME FOR NUMBER 1 THROUGH 8 QUICKLY
Slav-nsk [51]
I did this last semester and I would remember it but unfortunately this was the only section I didn't study for the final bc we did one day on it. I'm sorry. Good luck.
6 0
3 years ago
Other questions:
  • A(3,5)and C(7,9) are the opposite vertices of a rhombus ABCD.find the equation of diagonal BD.
    15·1 answer
  • Juan spent 10 minutes on his history homework and 3 minutes per question on his math homework. Which graph shows the total homew
    12·2 answers
  • timeless toys builds tricycles and wagons. the owner noticed that there are several diffrent ways that a customer could place an
    8·2 answers
  • Felicity the clown inflates two balloons in five minutes. Grumpy a clown ties five balloon animals in 12 minutes. They both work
    7·1 answer
  • Six neighbors share 4 pies equally. How much of a pie does each neighbor get?
    8·1 answer
  • My sister asks you guys for help once more!<br> What is the value of 7/10 - 3/6?
    15·2 answers
  • Help Me please!!!!! Rn
    11·2 answers
  • What's 5sqrtx -4 = 20
    10·1 answer
  • Pls help 100 point math question !!!!
    9·2 answers
  • A local weather forecaster uses percentages to describe chances of precipitation. Do you think percentages should be used to exp
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!