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
Lady_Fox [76]
3 years ago
8

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

Mathematics
2 answers:
yanalaym [24]3 years ago
6 0
Answer: x = 27

Explanation:

3x - 4y = 65
3x - 4(4) = 65
3x - 16 = 65
3x = 65 + 16
3x = 81
x = 81/3
x = 27
Goshia [24]3 years ago
3 0

Hello there! :)

Answer:

\huge\boxed{x = 27}

Given the equation:

3x - 4y = 65 where y = 4

Substitute in 4 for "y":

3x - 4(4) = 65

Simplify:

3x - 16 = 65

Add 16 to both sides:

3x - 16 + 16 = 65 + 16

3x = 81

Divide both sides by 3:

3x/3 = 81/3

x = 27.

You might be interested in
Point Mis the midpoint of AB. AM = 3x + 3, and AB= 83 – 6.
Ber [7]

Answer:

AM= Half of AB

or, 3x+3=(8x-6)/2

or, 6x+6=8x-6

or, 2x=12

Therefore,x=6

so,AM=3*6+3=21

So the units is 21

4 0
3 years ago
Read 2 more answers
Factor each completely. <br><br>10a² - 9a + 2 <br><br>​
Sophie [7]

Answer:

a= \frac{2}{5} or \frac{1}{2}

Step-by-step explanation:

Equate the equation to zero

10a^{2}-9a+2=0

10a^{2}-5a-4a+2=0

5a(2a-1)-2(2a-1)=0

Write out the factors

(5a-2)(2a-1)=0

Then equate each factor to zero

5a-2=0 OR 2a-1=0

5a=2  OR  2a=1

a= \frac{2}{5}   OR a= \frac{1}{2}

a=\frac{2}{5} or \frac{1}{2}

3 0
3 years ago
A 16-fl bottle of juice costs $2.00. what is the unit cost?
riadik2000 [5.3K]
$0.08 per fluid ounce.
4 0
3 years ago
Read 2 more answers
Will give brainliest.
nadya68 [22]
X = 20
Trust me this is correct
8 0
3 years ago
Make an equation that has the numbers : -3.78 , -1.2y, and -4.2y
kodGreya [7K]

Answer: In solution

Step-by-step explanation:

Well, first you need to arrange the numbers in anyway, separated by operations. I just did:

-3.78 + (-1.2y + -4.2y)

We then need to come up with the other side of the equation.

For this, I added the like terms:

-3.78 + (-1.2y + -4.2y) = -3.78 -5.4y

Then, I came up with a value for y. Y = 5

Then, I multiplied -5.4 by 5, getting -27 so,

-3.78 + (-1.2y + -4.2y) = -3.78 - 27

Again, I collected like terms:

-3.78 + (-1.2y + -4.2y) = -30.78

Now, I have my equation.

———————————————————————————————

HOW TO SOLVE THE EQUATION

-3.78 + (-1.2y + -4.2y) = -30.78

1. Add 3.78 to both sides

-1.2y + -4.2y = -27

2. Collect like terms

-5.4y = -27

3. Divide both side by -5.4

y = 5

8 0
3 years ago
Read 2 more answers
Other questions:
  • How do you find the area of this triangle?
    11·1 answer
  • Which are the like terms in 5x3 + 3x2 – x + x3?
    9·1 answer
  • The probability that a worker with occupational exposure to dust contracts a lung disease is 0.2. three such workers are checked
    6·1 answer
  • If the APR of a savings account is 5.3% and interest is compounded quarterly,
    5·1 answer
  • The diameter of a circle measures 30 m. what is the circumference of the circle?
    11·1 answer
  • Find the slope of the line through the pair of points. (-14, -2) and (7,7)
    5·1 answer
  • R^2 = 4r-4<br><br> Please show steps
    7·1 answer
  • Look at the number line below.
    12·1 answer
  • I WILL GIVE BRAINLIEST!! {y=−x+3y=x+5 What is the solution for this system of equations? Enter your answer in the boxes.
    7·2 answers
  • Y = x + 3 <br> find slope and y intersect
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!