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
Murrr4er [49]
3 years ago
11

How to do I do solving systems of equations by elimination

Mathematics
1 answer:
Andre45 [30]3 years ago
7 0
If you have two equations, you will multiply one of them so it cancels out the other one. For Example, 2x-y=16        3x-y=28You will multiply the second equation by -1 which brings us to 2x-y=16    -3x+y=-28you will add both equations together which will leave you with-x=-12x=12Then, you plug that in. 2x12=24.    24-16=8.    3x12=36     36-8=28    And, You're done!
You might be interested in
What is 5/11 in decimal form? (round your answer to the nearest hundredth.)?
natita [175]
5/11 in decimal form is .45
4 0
3 years ago
Danny and Mark and Evans ages combined is 80. What was there combined age three years ago?
Tasya [4]

Since there are three kids, 3x3=9. 80-9=71.  Danny and Mark and Evans ages combined is 71 years
8 0
3 years ago
Read 2 more answers
Bijou has $72 in her savings account and plans to save $x each month for 8 months. The expression $8x+$72 represents the total a
AfilCa [17]

Answer:

 The total money in account after 8 months is $72 + $8 x

Step-by-step explanation:

Given as :

Total money available in saving account = $72

The money saves each month in account = $x

So, The money saves in account after 8 months = $x × 8 = $8 x

Let The total money in account after 8 months = $A

Or, A = money available in saving account +  money saves in account after 8 months

i.e A = $72 + $8 x

So, The total money in account after 8 months = A =$72 + $8 x

Hence,  The total money in account after 8 months is $72 + $8 x  Answer

4 0
3 years ago
Please help me ive gotten 2 wrong pelase help me please
Tju [1.3M]
The blue one with four corners!!!
3 0
3 years ago
A company with n employees publishes an internal calendar, where each day lists the employees having a birthday that day. What i
lutik1710 [3]

Answer: 1-(\frac{364}{365})^n

Step-by-step explanation:

Binomial probability formula :-

P(x)=^nC_xp^x(1-p)^x, where P(x) is the probability of getting success in x trials, n is the total number of trials and p is the probability of getting success in each trial.

We assume that the total number of days in a particular year are 365.

Then , the probability for each employee to have birthday on a certain day :

p=\dfrac{1}{365}

Given : The number of employee in the company = n

Then, the probability there is at least one day in a year when nobody has a birthday is given by :-

P(x\geq1)=1-P(x

Hence, the probability there is at least one day in a year when nobody has a birthday =1-(\frac{364}{365})^n

5 0
3 years ago
Other questions:
  • franklin deposited $75 in a no-interest bank account when he opened it. After that, he deposits $50 per month in the account. As
    8·1 answer
  • What is the equation of a line that passes through the points (0,5) and (4,8)? Write your answer in slope-intercept form.
    6·1 answer
  • 80% of x is equal to 100. Write an equation that shows the relationship of 80%, x, and 100
    15·1 answer
  • The two shorter sides of an obtuse triangle measure 15 inch and 3 ft describe the length of the longest side
    7·1 answer
  • What is the solution to this linear system? Enter a value in each box to create an ordered pair,
    12·1 answer
  • Find the exact value of cos –150°.
    9·1 answer
  • Can someone help me w this pls
    12·2 answers
  • What conclusion can be determined from the dot plot below?
    14·2 answers
  • Exercise 2
    9·1 answer
  • Jasmine painted flowers in art class. She painted 5 daisies, 7 pink roses, and 3 tulips.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!