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
Helen [10]
3 years ago
8

1/2x+1/3y=7,1/4x+2/3y=6

Mathematics
2 answers:
Elena-2011 [213]3 years ago
5 0

A is the answer (1/16,14)


mel-nik [20]3 years ago
5 0
We can see that 1/3 times 2=2/3
we can cancel the y terms

multily first equation by -2 and add to 2nd

-x-2/3y=-14
<u>1/4x+2/3y=6 +</u>
-3/4x+0y=-8

-3/4x=-8
times both sides by -4
3x=32
divide both sides by 3
x=32/3

sub back

1/2x+1/3y=7
1/2(32/3)+1/3y=7
16/3+1/3y=7
times 3 both sides
16+y=21
minus 16 both sides
y=5


(32/3,5)
(10 and 2/3,50

C is answer
an easier way would be to get rid of the fractions by multiplying the first equation by 6 and 2nd one by 12 but oh well

C is the answer
You might be interested in
If a point is equidistant from the endpoint of segment, then it is
Mashutka [201]

Hi

.... then it is  located on the perpendicular bisector.

7 0
3 years ago
If D is an n × n diagonal matrix with entries dii, then det D = d11d22 ∙ ∙ ∙ dnn. Verify this theorem for 2 × 2 matrices.
nadya68 [22]

Answer:

Verified

Step-by-step explanation:

Let the diagonal matrix D with size 2x2 be in the form of

\left[\begin{array}{cc}a&0\\0&d\end{array}\right]

Then the determinant of matrix D would be

det(D) = a*d - 0*0 = ad

This is the product of the matrix's diagonal numbers

So the theorem is true for 2x2 matrices

8 0
3 years ago
Use ratio language to describe the relationship between 5 girls: 8 boys
garri49 [273]
5:8
.................
7 0
3 years ago
Need help with this problem ASAP, don’t need an explanation, just an answer
klemol [59]

Answer:

x^3-10x^2+1/9

Step-by-step explanation:

For standard form you need to put the exponents in order. So x^3 is first, followed by -10x^2, and finally 1/9. Hope this helps!

5 0
3 years ago
Question 132 .. .. .. .. ..
Eddi Din [679]

Answer:

∠LOM is 48°

Step-by-step explanation:

∠MOL+∠MON=180°

6x°+12°+7x°-92°=180°

13x°-80°=180°

<em>Add 80° to both sides</em>

13x°=260°

<em>Divide both sides by 13</em>

x°=20°

Plugging x° into the equation for ∠LOM, we get:

7×20°-92°=

140°-92°=

48°

∠LOM is 48°

4 0
3 years ago
Other questions:
  • What is the slope of the line passing through the points (−1, 3) and (4, −7) ?
    9·2 answers
  • Select the correct answer.
    15·1 answer
  • Help me please thanks .
    13·1 answer
  • (08.04 MC) Christina bought a yoyo from a company that claims that, with each retraction, the string rolls up by 70% of the orig
    5·2 answers
  • Find x , the angle of depression from the top of a lighthouse that is 173 ft above water level to the waterline of a ship 1119 f
    9·1 answer
  • What is the image point of (5,-4)(5,−4) after a translation left 4 units and down 3 units?
    6·2 answers
  • Two trains started moving at the same time, train A from Boston to New York, and train B from New York to Boston. The distance b
    6·1 answer
  • Hello everyone. What is the quadratics?
    11·1 answer
  • You have one box that is 2 3 11 feet tall and a second box that is 2.27 feet tall. Write the decimal expansion for 2 3 11. If yo
    15·1 answer
  • HEYYYYYYYYYYYYYYYYY
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!