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
Nitella [24]
3 years ago
9

If you were to solve the system using the addition method, what would you multiply the first equation by in order to make the x'

s add out of this system? -2x + 3y = 6 4x - 2y = 8
Mathematics
1 answer:
Inessa05 [86]3 years ago
7 0
2 times 2=4
multiply first equation by 2 to get
-4x+6y=12
then add to get

-4x+6y=12
<u>4x-2y=8 +</u>
0x+4y=20

4y=20
y=5

sub back
-2x+3y=6
-2x+3(5)=6
-2x+15=6
-2x=-9
x=9/2=4.5


the number to multiply by is 2
You might be interested in
The sugar content of the syrup is canned peaches is normally distributed. Assumethe can is designed to have standard deviation 5
andreyandreev [35.5K]

Answer: 0.50477

Step-by-step explanation:

Given : The sugar content of the syrup is canned peaches is normally distributed.

We assume the can is designed to have standard deviation \sigma=5 milligrams.

The sampling distribution of the sample variance is chi-square distribution.

Also,The data yields a sample standard deviation of s=4.8 milligrams.

Sample size : n= 10

Test statistic for chi-square :\chi^2=\dfrac{s^2(n-1)}{\sigma^2}

i.e. \chi^2=\dfrac{(4.8)^2(10-1)}{(5)^2}=8.2944

Now, P-value = P(\chi^2>8.2944)=0.50477  [By using the chi-square distribution table for p-values.]

Hence, the chance of observing the sample standard deviation greater than 4.8 milligrams = 0.50477

8 0
3 years ago
Help please. i have no idea how to do this.
Grace [21]

Answer:

ill help u lol im pretty positive its 8

5 0
2 years ago
30 ounces = ____lb ____oz
zzz [600]
The pounds is 1.875 I'm not sure about oz
6 0
3 years ago
Read 2 more answers
Betsy caught three fish. The weights of the fish were 3 lb 2 oz, 2 lb 11 oz, and 2 lb 8 oz. What was the total weight of the thr
UkoKoshka [18]

Answer:

8 lbs 5 oz

Step-by-step explanation:

When you add 3 lbs, 2 lbs, and 2 lbs you get 7 lbs.

There are 16 oz in a lb. When you add the number of oz you get 21 oz which is the same as 1 lb and 5 oz.

you then add 7 lbs to 1 lb and 5 oz and get 8 lbs and 5 oz.

5 0
3 years ago
What is the answer to 5 + 7x – (2x + 3)
VikaD [51]

Answer:

2+5x?

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Sarina has some ribbon. After she used 24.7 cm of it, she had 50 cm left. How much ribbon did Sarita start with?
    5·1 answer
  • John wants to buy a new bike that costs $337 and he already has saved $103. Estimate to find about how much more John needs to s
    11·2 answers
  • Can someone help me Determine the intercepts of the line.
    5·1 answer
  • Sandy bought 3/4 yard of red ribbon and 2/3 yard of white ribbon to make some hair bows.Altogether,how many yards of ribbon did
    6·2 answers
  • 12percent of what number is 45
    11·2 answers
  • What does 24 divided by 1.5 equal.
    15·2 answers
  • 2.10 Guessing on an exam: In a multiple choice exam, there are 6 questions and 4 choices for each question (a, b, c, d). Nancy h
    10·1 answer
  • Solve for x and y 100x + 50y = 200
    6·1 answer
  • Find the sum of 6/12+1/2​
    9·2 answers
  • Finish the sequence of 10 numbers 100,90,80
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!