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
MrRissso [65]
4 years ago
7

Use the elimination method to solve the system of equations. 3x+2y=16 2x-2y=4​

Mathematics
2 answers:
Masteriza [31]4 years ago
5 0

Answer:

x = 4; y = 2  

Step-by-step explanation:

(1)  3x + 2y = 16

(2)  2x – 2y =  4        Add (1) and (2)

              5x =  20     Divide each side by 5

(3)            x =    4      Substitute (3) into (2)

  2×4 – 2y =    4

       8 - 2y =     4     Subtract 16 from each side

            -2y =   -4     Divide each side by -2

              y =     2

<em>Check: </em>

(1)  3×4 + 2×2 = 16

       12  +   4   = 16

                  16 = 16

(2) 2×4 – 2×2 = 4

      8    -    4   = 4

                   4 = 4

lina2011 [118]4 years ago
5 0

Answer:(4,2)

Step-by-step explanation:

You might be interested in
Secant TP and tangent TR intersect at point 7. Chord SR and chord PQ intersect
prisoha [69]

Answer:

(C)x=11.6, y=23.2

Step-by-step explanation:

Using Theorem of Intersecting Secant and Tangent

Applying this theorem in the diagram, we have:

TQ$ X TP=TR^2

10(10+x+4)=16^2\\10(14+x)=256\\140+10x=256\\10x=256-140\\10x=116\\$Divide both sides by 10\\x=11.6

Next, we apply Theorem of Intersecting Chords

PV X VQ=SV X VR

4 X x= 2 X y

Recall earlier we got: x=11.6

2y=4 X 11.6

2y=46.4

Divide both sides by 2

y=46.4/2=23.2

Therefore: x=11.6, y=23.2

5 0
4 years ago
(<img src="https://tex.z-dn.net/?f=%28%5Csqrt%7B6%7D%20%2B%5Csqrt%7B3%7D%29%28%5Csqrt%7B2%7D-2%29" id="TexFormula1" title="(\sqr
Marta_Voda [28]

Answer:

-2.453

Step-by-step explanation:

sqrt(6) * sqrt(2) = 3.461

sqrt(6) * -2 = -4.899

sqrt(3) * sqrt(2) = 2.449

sqrt(3) * -2 = -3.464

sum of numbers equals

-2.453

7 0
3 years ago
Mario fille a hummingbird feeder with 3/4 cup of sugar water on Friday .Monday , Mario sees that 1/8 of sugar water is left .how
tino4ka555 [31]

\frac{5}{8} of total sugar was drink by humming bird

<h3><u>Solution:</u></h3>

Given that,

When the Mario kept the humming feeder on Friday it had \frac{3}{4} cup of sugar water

When he sees on Monday, it had only \frac{1}{8} of sugar water

So, this means the water is consumed by the humming bird will be the difference of the two values:-

\text { Sugar water consumed }=\frac{3}{4}-\frac{1}{8}

On solving we get,

=\frac{3}{4}-\frac{1}{8}=\frac{24-4}{32}=\frac{20}{32}

=\frac{5}{8}

Hence, the amount of sugar water consumed is \frac{5}{8} of total sugar at the starting

5 0
4 years ago
What is the volume of this?
Sergio039 [100]
As I calculated the answer is the last option. If I made a mistake you can report me. I am not too sure.
648 in^3
4 0
3 years ago
Polynomial division
Serjik [45]
This is a great place and time to apply synthetic division.  Since you are dividing the 3rd order poly by (a+2), let the divisor in synth. div. be -2.

Then:
      _________________
 -2 /   1   6   12    8

     _____-2_-8    -8____________
          1   4     4     0

Since there is no remainder, -2 is a root and (x+2) is a factor of the poly.

The quotient comes from  those coefficinets 1  4  4  

and is    1a^2 + 4a + 4, whose factors are (a+2)^2.
6 0
4 years ago
Other questions:
  • HELP ME!!!! Need help with math give 5 stars. Thank you
    14·1 answer
  • How many sixteens are in 15/16
    9·1 answer
  • Find the inverse of the following function f(X)=12X-4
    14·1 answer
  • the length of 3 peices of wire are in the ratio 10:15:8.if the length of the shortest peice of wire is 2.4 find the difference i
    8·1 answer
  • How do you find the cube root of a number?
    11·2 answers
  • Find the slope and the equation please<br><br>and step by step PLEASE.​
    9·1 answer
  • For each pair of pants, Pedro has 2 shirts. Which models show this relationship? Check all that apply.
    12·1 answer
  • Solve the formula for T. L=4 πzt+5 πz^3
    13·1 answer
  • Take your time but pls help me Araw surveyed people that where standing in a line to vote an election. one of his questions was
    15·1 answer
  • Triangle MRN is created when an equilateral triangle is folded in half.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!