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
Rus_ich [418]
3 years ago
14

Help me please with this math. find x and y​

Mathematics
1 answer:
erastova [34]3 years ago
3 0

Answer:X= 1.84. Y= 3.08

Step-by-step explanation:

-9x+8y =8 ............i

-8x+10y= -16........ii

Multiply equation I by 8

Multiply equation ii by 9

-72x+64y = 64 ..... iii

-72x+90y = 144 ..... iv

Subtract iv from iii

-26y = -80

y= 80/26

y= 3.08

Put the value of y in equation i

-9x+8y =8

-9x+8(3.08) = 8

-9x+24.64 = 8

-9x = 8-24.64

-9x=-16.64

Divide both side by 9

-9x/-9 = -16.64/-9

X= 1.84

You might be interested in
......... anyone will y’all help
fredd [130]

Answer:

b

Step-by-step explanation:

3 0
3 years ago
The exchange rate between dollars ($) and pounds (£) is $1 = £0.65 . The exchange rate between euros (€) and pounds is €1 = £0.7
ivolga24 [154]

Answer:

€520=£442.83

=£442.83-£260

=£182.83 into dollars=$251.52

Therefore he receives $251.52

5 0
3 years ago
An article which cost money 150 was sold at a loss of 5%.what was the selling price?
Hunter-Best [27]

Answer:

142.5

Step-by-step explanation:

150/x=100/95

95*150/100=

142.5

3 0
3 years ago
Simplify: 2x^2(4x^3 - 3x^2 + 6x)
Blababa [14]

Answer:

8x

Step-by-step explanation:

3 0
3 years ago
Question: is 1 &gt; 0.99999999...?<br>Prove algebraically.
Crazy boy [7]
No.  We claim that 1=0.\overline{9} and use algebra to prove the statement.

Let x=0.\overline{9}.  Multiply this by ten to get 10x=9.\overline{9}.  Subtract the initial equation to give 9x=9 and divide by 9 to see that x=1.  Substituting into the original equation gives 1=0.\overline{9}, proving the desired statement.
6 0
3 years ago
Other questions:
  • Point P is the midpoint of both MR and NQ, which are on the same line. If MN=26, NP=3x+4, and QR=6x+2, find NP.
    8·1 answer
  • I need to understand proofs
    11·1 answer
  • The length of a stalactite​ (in mm) has been measured at the beginning of every fourth year since the year 2000. the data throug
    8·1 answer
  • A.
    11·1 answer
  • 2. Find the product of 2/7 x 5/6
    12·1 answer
  • Divide. 8.844÷0.04 enter the anwser in the box
    13·1 answer
  • Find the volume, V, of a right circular cylinder in terms of π, if its height is 5 yards, and the radius of its base is 2 yards.
    7·1 answer
  • I really need help mad for it to be correct!!!!
    10·2 answers
  • I need help !!! Please
    5·2 answers
  • If you have a cube with the volume of 73.560059, what is the length of the cube?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!