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
irina1246 [14]
3 years ago
6

Solve x and y 3x-4y=18,9x-2y=12

Mathematics
2 answers:
erik [133]3 years ago
6 0

Answer:

X=2/5

Y=-21/5

Step-by-step explanation:

solve your system by substitution.

3x−4y=18;9x−2y=12

Step: Solve3x−4y=18for x:

3x−4y=18

3x−4y+4y=18+4y(Add 4y to both sides)

3x=4y+18

3x/3=4y+18/3

(Divide both sides by 3)

x=4/3y+6

Step: Substitute 4/3y+6 for x in 9x −2y=12:

9(4/3y+6)−2y=12

10y+54=12(Simplify both sides of the equation)

10y+54+−54=12+−54(Add -54 to both sides)

10y=−42

10y/10=-42/10 .   (Divide both sides by 10)

y=-21/5

Step: Substitute

21/5 fory in x= 4/3y+6

x= 4/3y (-21/5) +6

  X=2/5 (Simplify both sides of the equation)

           Answer:

          X=2/5

          Y=-21/5

HAVE A NICE DAY!!!!!

Rudiy273 years ago
4 0

Answer:

3x-4y=18

1xy=18

xy=18 ans

You might be interested in
Write a compound inequality to represent all of the numbers between -4 and 6.
blondinia [14]
-4 < 6
Negative number always less than positive number
4 0
3 years ago
Does the table represent a linear or nonlinear function
Kipish [7]

Answer:

Non-Linear

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
If a pair of shoes cost $40 and they are on sale for 30% off how much would they be
yulyashka [42]

multiply 40 by 30% to find the discount then subtract

40 * 0.30 = 12

40-12 = 28

they would cost $28

6 0
3 years ago
What are the terms in the expression 7x + 4y + 1?
Sphinxa [80]
There are 3 terms : 7x , 4y, and 1.
a term is separated by any math symbol
examples are =, +, *
7 0
3 years ago
Read 2 more answers
A particular fruit's weights are normally distributed, with a mean of 618 grams and a standard deviation of 24 grams. If you pic
Lorico [155]
Answer: The probability is 0.5136.

To find this probability we have to find the range of the values on the normal distribution table.

First, we need to find the percent for each making z-score.

Lower end: 50/24 = 2.08 = 0.0183

Upper end: 2/24 = 0.08 = 0.5319

Now, that we have the upper and lower ends, we can subtract them to find the difference or the range.  

0.5319 - 0.0183 = 0.5136

There is a 51.36% chance they are in the given range.
3 0
3 years ago
Other questions:
  • 3/5x + 1/4y = -1/2 in standard form
    12·1 answer
  • If two planes cross one another, the their intersection is 2 lines?
    6·1 answer
  • 7.9-3.47=please show me how to rewrite it vertically?
    5·1 answer
  • Which best explains why these two figures are similar or not similar?Which best explains why these two figures are similar or no
    6·1 answer
  • Doris is playing a game. She rolls three six-sided number cubes to tell her how many squares to move. If two number cubes show 4
    13·1 answer
  • Examine parallelogram ABCD below.
    8·1 answer
  • Help pls . Thank you very much
    12·2 answers
  • Need help ASAP <br> Thankss + BRAINLIST only for correct answer
    15·1 answer
  • rest of the world 39 hours in 6 days if Kristen wants the same amount of hours each day how many hours did she work each day wri
    7·1 answer
  • Can someone help me pls
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!