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
shtirl [24]
3 years ago
15

Solve the system by adding or subtracting -3x-3y=9 3x+8y=6

Mathematics
1 answer:
Montano1993 [528]3 years ago
5 0

Answer:

x = -6 y = 3

Step-by-step explanation:

Adding the two equations and you get, -3x-3y + 3x+8y= 6+9

=> 5y = 15

=> y = 3

Plug y in each equation

-3x -3(3) = 9

-3x -9 = 9

-3x = 18

x = -6

3x + 8(3) = 6

3x +24 = 6

3x = -18

x = -6

You might be interested in
A local citizen wants to fence a rectangular community gardenn. The length of the garden should be at least 110ft,and the distan
Arte-miy333 [17]
The question is incorrect
the correct question is
A local citizen wants to fence a rectangular community garden. The length of the garden should be at least 110 ft,and the distance around should be no more than 380 ft. Write a system of inequality that model the possible dimensions of he garden. Graph the system to show all possible solutions

let
x---------------> t<span>he length of the garden
</span>y---------------> the wide of the garden

we know that
x>=110
2x+2y <=380---------------> x+y <= 190

Part A) <span>Write a system of inequality that model the possible dimensions of he garden
</span>
the answer part A) is
x>=110
x+y <= 190


Part B) <span>Graph the system to show all possible solutions

using a graph tool
see the attached figure
the solution is the triangle show in the figure

</span><span>the possible solutions of y (wide) would be between 0 and 80 ft
</span>the possible solutions of x (length) would be between 110 ft and 190 ft

5 0
3 years ago
7x+2y=-28<br><br><br>Help write slope-intercept form pls​
kap26 [50]

Answer:

y = -\frac{7}{2}x - 14

Step-by-step explanation:

Slope intercept form: y = mx + b

Isolate the y:

7x + 2y = -28

2y = -7x - 28

y = -\frac{7}{2}x - 14

3 0
3 years ago
What is 175 in expanded form
Maru [420]
So if you wanted the factored form (exg. 1*2*3*4=24)
then this is (5 times 5 times 7)

8 0
3 years ago
Read 2 more answers
Which statement about the simplified binomial expansion of (a + b)", where n is a positive integer, is true?
Alja [10]

Answer:

(a+b)^n  ={n \choose 0}a^{(n)}b^{(0)} + {n \choose 1}a^{(n-1)}b^{(1)} + {n \choose 2}a^{(n-2)}b^{(2)} + .....  +{n \choose n}a^{(0)}b^{(n)}

Step-by-step explanation:

The Given question is INCOMPLETE as the statements are not provided.

Now, let us try and solve the given expression here:

The given expression is: (a +b)^n, n > 0

Now, the BINOMIAL EXPANSION is the expansion which  describes the algebraic expansion of powers of a binomial.

Here, (a+b)^n  = \sum_{k=0}^{n}{n \choose k}a^{(n-k)}b^{(k)}

or, on simplification, the terms of the expansion are:

(a+b)^n  ={n \choose 0}a^{(n)}b^{(0)} + {n \choose 1}a^{(n-1)}b^{(1)} + {n \choose 2}a^{(n-2)}b^{(2)} + .....  +{n \choose n}a^{(0)}b^{(n)}

The above statement holds for each  n > 0

Hence, the complete expansion for the given expression is given as above.

4 0
3 years ago
Read 2 more answers
Find the nth term of 67,56,45,34
kvv77 [185]

Answer:

  an = 67 -11(n -1)

Step-by-step explanation:

The terms of your arithmetic sequence have a common difference of -11. The first term is 67.

These values can be used in the generic formula for the n-th term:

  an = a1 +d(n -1) . . . . . . first term a1, common difference d

  an = 67 -11(n -1) . . . . . formula for the n-th term

7 0
3 years ago
Other questions:
  • Deborah bought a yard of ribbon for $14.76. How much did Deborah pay per inch? (1 yard = 3 fee
    14·1 answer
  • if a theatre holds 1,200 people, and sells 2/3 of its seats, how many tickets does it sell? 500 600 750 800 900
    12·1 answer
  • Simplify using long division. (Remember to show all your work.)
    8·1 answer
  • Out of 20 attempts, a basketball player scored 8 times. What percent
    13·1 answer
  • Brooke is flying a kite while standing 50 m from the base of a tree at the park. Her Chi is directly above the 10 m tree in the
    8·1 answer
  • Find the x- and y- intercepts of the graph of each equation. 2x+3y=6
    7·1 answer
  • HIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
    9·2 answers
  • Lola's age is 14 more than 6 times Juan's age. The sum of their ages is 35. How old is each?
    5·1 answer
  • gabe's party will cost $12 if he invites six friends how many friends can Gabe invite if you spend $18​
    12·2 answers
  • Lenny drank 1 1/5 cups of water before he exercised. He drank 2 2/3 cups of water after he exercised. How much water did he drin
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!