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
Nat2105 [25]
3 years ago
10

Can someone help me ? Its due today please

Mathematics
2 answers:
anastassius [24]3 years ago
6 0

Answer:

x=3

y=5

Step-by-step explanation:

3x+2y=19

- 2x+2y=16

_____________

x=3

3(3)=9

19-9=10

10÷2=5

y=5

Maslowich3 years ago
3 0

Answer:

x=3

y=5

Step-by-step explanation:

Method 1 ; Substitution Method

3x + 2y =19\\2x+2y=16\\\\\mathrm{Isolate}\:x\:\mathrm{for}\:3x+2y=19:\\\quad x=\frac{19-2y}{3}\\\\\mathrm{Subsititute\:}x=\frac{19-2y}{3}\\\begin{bmatrix}2\times \frac{19-2y}{3}+2y=16\end{bmatrix}\\\\Simplify\\\begin{bmatrix}\frac{38+2y}{3}=16\end{bmatrix}\\\mathrm{Isolate}\:y\:\mathrm{for}\:\frac{38+2y}{3}=16:\quad y=5\\\\\mathrm{For\:}x=\frac{19-2y}{3}\\\\Substitute\:y\:= \:5\\x=\frac{19-2\times\:5}{3}\\\\\frac{19-2\times\:5}{3}=3\\\\x=3,\:y=5

Method 2 : Elimination method

\begin{bmatrix}3x+2y=19\\ 2x+2y=16\end{bmatrix}\\\\\mathrm{Multiply\:}3x+2y=19\mathrm{\:by\:}2\:\\\mathrm{:}\:\quad \:6x+4y=38\\\\\mathrm{Multiply\:}2x+2y=16\mathrm{\:by\:}3\:\\\mathrm{:}\:\quad \:6x+6y=48\\\\\begin{bmatrix}6x+4y=38\\ 6x+6y=48\end{bmatrix}\\\\6x+6y=48\\-\\\underline{6x+4y=38}\\2y=10\\\\\begin{bmatrix}6x+4y=38\\ 2y=10\end{bmatrix}\\\\\mathrm{Solve}\:2y=10\:\mathrm{for}\:y:\quad y=5\\\mathrm{For\:}6x+4y=38\mathrm{\:plug\:in\:}y=5

\mathrm{Solve}\:6x+4\times\:5=38\:\mathrm{for}\:x:\quad x=3\\\\x=3,\:y=5

You might be interested in
There are 8 green apple and 7 red apples in a basket. what is the ratio of all apple in the basket to red apples
Pavlova-9 [17]
The ratio of apples in the basket it 8:7
8 0
3 years ago
Read 2 more answers
The slope of the line through the points is 2. Which statement describes how the slope relates to the height of the water is the
SOVA2 [1]

Answer:

The height of the water increases 2 inches per minute. Or A

Step-by-step explanation:

Edge

6 0
2 years ago
What is one point six multiplied by 4
zheka24 [161]
1.6    6x4=24
x4
____
   6.  4
   2
don't know if u get it but here u go

6 0
3 years ago
What is the explicit formula for the sequence 7,2,-3,-8,-13
eduard
You could say that      a(n) = 12 - 5n .

Then ...

a(1) = 12 - 5 = 7
a(2) = 12 - 10 = 2
a(3) = 12 - 15 = -3
and so on.
So it seems to work.


8 0
2 years ago
Read 2 more answers
Help plz on this question?
Nookie1986 [14]
The carrot patch is a 2 by 5 rectangle so 2 times 5 is 10 so the answer is A
3 0
2 years ago
Other questions:
  • My cupcake recipe makes 12 cupcakes and requires 3/2 sticks of butter. I can only buy whole sticks of butter. How many whole sti
    10·1 answer
  • I don’t know how to Order 1/2,3/5,4/10 from greatest to least
    12·2 answers
  • 16.50 and pays 20.00 in cash the change due is
    15·2 answers
  • 3 4/5 divided by what equals 2 5/7
    13·1 answer
  • Lacey already owns 7 hair bands, and additional hair bands are priced at 1 for a dollar. How
    7·1 answer
  • Solve the following by first clearing the fractions.<br><br> 1/6x+1/2=1/2x+1/2
    10·1 answer
  • 3. Which represents the problem below?
    15·1 answer
  • Wht does ^ this mean? ​
    7·1 answer
  • True or false: 1-51 = -5?
    12·2 answers
  • Helpppppppppppppppp i got 2 wrong helpppppppppppppppppppppppppp ): if you help be would be branilst
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!