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
Butoxors [25]
3 years ago
8

What is the value of x in the equation 3x-4y=65 when y =4

Mathematics
1 answer:
salantis [7]3 years ago
3 0
3 x - 4 y = 65

Refine :

3 x - 4 * 4 =  65

3 x - 16 = 65

Add 16 to both sides :

3 x - 16 + 16 = 65 + 16

3 x = 81

Divide both sides by 3 :

3 x / 3  = 81 / 3

x = 81 / 3

x = 27

hope this helps!

You might be interested in
6 = -4x + y<br> -5x - y = 21<br> Please Help Fast!!!!!! Substitution
Vera_Pavlovna [14]

Answer:

y = 4x + 6

-5x - 4x - 6 = 21

-9x - 6 = 21

-9x = 27

x = -3

y - 4(-3) = 6

y + 12 = 6

y = -6

(-3, -6)

5 0
3 years ago
Please I need help with this question and also the working
pychu [463]
Okay. This is my answer

8 0
2 years ago
What is the standard form formula
vazorg [7]

Answer: The standard form of an equation is Ax + By = C. In this kind of equation, x and y are variables and A, B, and C are integers.

Explanation:

We can convert a point slope equation into standard form by moving the variables to the left side of the equation.

8 0
3 years ago
Makos goal is to save $42 he currently has $2 and plans to save $18 per week let x represent the number of weeks mako saves mone
shutvik [7]
It’s is 3 weeks long that’s the answer
3 0
3 years ago
Andrew must spend less than 53$ on meals during the weekend. he has already spent 21$ on meals costing 8$ average. how many addi
Shkiper50 [21]

Andrew can buy maximum 3 meals this weekend.

From given question,

Andrew must spend less than 53$ on meals during the weekend.

He has already spent 21$ on meals costing 8$ average.

Let x, the number of meals

So, we get an inequality,

8x + 21 < 53

We need to find the number of meals he can buy this weekend.

From above inequality,

⇒ 8x + 21 < 53

⇒ 8x < 53 - 21

⇒ 8x < 32

⇒ x < 4

This means, from 1 to 3 meals.

Therefore, Andrew can buy maximum 3 meals this weekend.

Learn more about an inequality here:

brainly.com/question/19003099

#SPJ4

3 0
1 year ago
Other questions:
  • For a circle with a radius of 15 cm, what is the length of an arc intercepted by an angle measuring 120 degrees
    13·1 answer
  • What is the sum of the angle measures of a 32-gon?
    13·1 answer
  • Help mee!!!!!!!!!!!!
    14·2 answers
  • What is the measure of B?
    12·1 answer
  • Let v = 9.<br><br> What is the value of r in the equation r = 3 × v + 13?
    6·1 answer
  • Which is the best estimate of 5 5/6 - (1 1/4 + 3 7/8)​
    14·1 answer
  • A line with a slope of 3 passes through the point (4, 6). What is its equation in
    14·1 answer
  • Which point on the coordinate plane is a reflection of point A across the y-axis?
    9·2 answers
  • Find the Value of X.<br> Solve for X
    14·1 answer
  • What is the additive inverse of the number given below?<br> 6
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!