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
Aloiza [94]
3 years ago
11

Solve this system of equations. Write the answer as an ordered pair.

Mathematics
1 answer:
baherus [9]3 years ago
7 0
-2x + 6y = 6

6y - 6 = 2x

6(y-1) = 2x

(1/2) * 6(y-1) = 2x * (1/2)

x = 3(y-1)

------------

If, x = 3(y-1),

-7 * 3(y-1) + 8y = -5

-21 * (y-1) + 8y = -5

-21y + 21 + 8y = -5

21 + 5 = 21y - 8y

26 = 13y

y = 26/13

Therefore: y=2.

----------

If y=2,

x = 3(2-1) = 3

-----------

Answers:

x=3 and y=2.
You might be interested in
5+8(3+x) you have to simplify the expression. Please show your work and Explain
dedylja [7]
Solve 5+8 and get 13(3+x) then muliply 13×3 and 13×X... you will end up with 39+13x
6 0
3 years ago
Please help!<br> 4x(5y-x)-5y(4x-y)
Andreas93 [3]
<span>4x(5y-x)-5y(4x-y)=20xy-4x^2-20yx+5y^2=-4x^2+5y^2=5y^2-4x^2</span>
8 0
3 years ago
Read 2 more answers
How many more pennies were produced that year than half year
Yakvenalex [24]
Think I know why don't you do the math cadence man all you said is "oh how many more pennies are produced in half a year really not even giving us any numbers it doesn't matter what device were on we can always look up the answer online your lucky
6 0
3 years ago
Math workshops and final exams: The college tutoring center staff are considering whether the center should increase the number
ludmilkaskok [199]

Answer:

2. Number of workshops attended.

Step-by-step explanation:

The variable of interest for predicting the final exam score and doing regression analysis is workshop attendance.  Therefore, the response variable should be the number of workshops attended by each student.

This also agrees with what the college tutoring center staff are considering, which forms the research question: "should the center increase the number of math workshops they offer to help students improve their performance in math classes?"

3 0
3 years ago
A boat crew rowed 10.5 miles downstream, with the current, in 1.5 hours. the return trip upstream , against the current , covere
alukav5142 [94]

Answer:

The speed of the boat is 5 miles per hours

The speed of the current is 2 miles per hours .

Step-by-step explanation:

Given as :

The distance cover by boat downstream = D = 10.5 miles

The time taken by boat to cover D distance = T = 1.5 hours

The distance cover by boat Upstream = d = 10.5 miles

The time taken by boat to cover d distance = t = 3.5 hours

Let The speed of boat =  x mph

Let The speed of current =  mph

Now, According to question

∵ Speed = \dfrac{Distance}{Time}

<u>For Downstream</u>

x + y = \dfrac{D}{T}

Or, x + y =  \dfrac{10.5}{1.5}

Or, x + y = 7          .......A

<u>For Upstream</u>

x - y = \dfrac{d}{t}

Or, x - y =  \dfrac{10.5}{3.5}

Or, x - y = 3          .......B

Now, Solving eq A and eq B

So, (x + y) + (x - y) = 7 + 3

Or, (x + x) + (y - y) = 10

Or, 2 x + 0 = 10

∴  x = \dfrac{10}{2}

i.e x = 5 mph

So, The speed of the boat = x = 5 miles per hours

Put the value of x into eq A

∵ x + y = 7

Or, 5 + y = 7

∴ y = 7 - 5

i.e y = 2 mph

So, The speed of the current = y = 2 miles per hours

Hence, The speed of the boat is 5 miles per hours and The speed of the current is 2 miles per hours . Answer

7 0
3 years ago
Other questions:
  • How many ways can a coach choose the 6 starting players from a volleyball team of13 players?
    9·1 answer
  • Jane has a gift card with a balance of 100$​
    14·2 answers
  • What is the length of the hypotenuse of the triangle below ?
    10·1 answer
  • Find the scale factor for each scale.
    12·1 answer
  • For any two nonzero integers, the product and quotient have the same sign
    13·1 answer
  • What is the volume of a pyramid 5 feet tall if its base is a square 4 feet by 4 feet
    12·2 answers
  • PLZ HURRY IT'S URGENT!!!!!!!
    10·1 answer
  • Can you plz pick only 2 of these and make sure you have the steps to go with it cuz it’s due today
    5·2 answers
  • Vince borrows $900 to buy a couch. He will pay off the loan by paying 1.5% simple interest for 2 years. Vince incorrectly calcul
    11·1 answer
  • write the equation of a line that has a slope of-3 and passes through the point(1.25,4)use the drop-down menus to select the app
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!