224509
04.08.2019 •
Mathematics
What is the solution to the following system? x+2y+=9; x-y+3z=13; 2z=10 x = 10, y = 2, z = 5 x = –4, y = 2, z = 5 x = 0, y = 2, z = 5 x = 4, y = 6, z = 5
Solved
Show answers
More tips
- S Sport When will the Biathlon World Championships 2011 take place in Khanty-Mansiysk? Answers to frequently asked questions...
- H Health and Medicine Trading Semen for Money: Where Can You Sell and Why Would You Want to?...
- F Food and Cooking Homemade French Fries: The Ultimate Guide...
- H Health and Medicine How to Increase Blood Pressure without Medication?...
- S Style and Beauty Choosing a Hair Straightener: Specific Criteria to Consider...
- F Food and Cooking How to Make Polendwitsa at Home?...
- S Science and Technology When do we change our clocks?...
- L Leisure and Entertainment What to Give a Girl on March 8?...
- F Family and Home Is it Worth Knowing the Gender of Your Child Before Birth?...
- C Computers and Internet Why is Yandex s robot Bless.yandex.ru Important?...
Answers on questions: Mathematics
- M Mathematics Which graph represents the function of f(x) = the quantity of 4 x squared minus 4 x minus 8, all over 2 x graph of 2 x minus 4, with discontinuity at negative 1, negative 6 graph...
- M Mathematics Ihave this problem, on my math here s what it says: 5-84 a. use the numbers 7,5,6 and 3, only once each to create an expression that equals 75. you may use addition,subtraction,multiplication...
- M Mathematics Arectangle is (2 x + 5) long and (x^2 - 3x + 1) wide. what is its area?...
- M Mathematics If a bank offers a savings account that pays simple interest rate of 4% and you deposit $475.00 into this account, how much interest will you have earned after 3 years? a. $5,700.00...
- M Mathematics Which of these is an example of physical change? a. digesting bread b. breaking bread c. toasting beard d. baking bread...
- M Mathematics There is one die labeled 6,7,8,9,10, and 11. what are the ways that you can roll 30 points in 4 rolls? write the ways....
- M Mathematics Find a rational number that is between 9.5 and 9.7. explain why it is rational...
- M Mathematics El numero 38 es par o impar el numero 35 es par o impar?...
- M Mathematics Write a real word problem for equation x-75=200...
- M Mathematics What is 32/100, 72/100 , 43/100 , 29/100 reduced to lowest form...
Ответ:
x - y + 3z = 13
2z = 10
Solve the 3rd equation for z.
z = 5
Now substitute z = 5 into both the first and seconds equations.
x + 2y + 5 = 9
x - y + 3(5) = 13
x + 2y = 4
x - y = -2
Subtract the first equation from the second equation above.
-3y = -6
y = 2
Now substitute z = 5 and y = -2 into the first original equation, and solve for x.
x + 2(2) + 5 = 9
x + 9 = 9
x = 0
x = 0; y = 2; z = 5
Ответ:
answere is (c)perpendicular