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
boyakko [2]
2 years ago
10

Make x the subject of the formula y=7x + 4

Mathematics
2 answers:
alex41 [277]2 years ago
6 0
Y = 7x + 4
-4 from both sides
y - 4 = 7x
/ 7 on both sides
(y-4)/7 = x

Answer:

x = (y-4)/7
murzikaleks [220]2 years ago
3 0

Answer:

x= (y - 4)/7

Step-by-step explanation:

y=7x + 4

Subtract 4 from both sides

y - 4= 7x +4 - 4

y - 4= 7x + 0

y - 4= 7x

Divide both sides by 7

(y - 4)/7= 7x/7

(y - 4)/7= x

x= (y - 4)/7

You might be interested in
4 boys are running a race Pete is ahead of nick by 11 meters Oliver is ahead of Manny by 10 meters Oliver is ahead of Pete by 5
zlopas [31]
Oliver is the runner in 1st place 16 meters ahead of Nick, who is the runner in the last place.
4 0
3 years ago
Read 2 more answers
Find and sketch the domain of the function. f(x,y)=√(4-x^2-y^2) +√(1-x^2)<br>​
elena55 [62]

Answer:

Hello

Step-by-step explanation:

The domain is limited with 2 lines parallel: -1 ≤ x ≤ 1

and the disk ? (inside of a circle) of center (0,0) and radius 2

dom\ f(x,y)=\{(x,y) \in \mathbb{R} ^2 | \ -1\leq x \leq -1\ and \ ( -\sqrt{4-x^2}  \leq \ y  \leq \sqrt{4-x^2}\  ) \ \}\\

3 0
3 years ago
Is 28/30 bigger than 4/5
Reptile [31]
Yes 28/30 is bigger than 4/5.
4 0
3 years ago
Read 2 more answers
Solve the system of equations by any method.<br><br><br><br> 5x+9y =16<br> x+2y =4
Alisiya [41]

Answer:

The system of equations has one solution at (-4, 4).

Step-by-step explanation:

We are given the system of equations:

\displaystyle\left \{ {{5x+9y=16} \atop {x+2y=4}} \right.

We can use elimination to solve this system. We need to multiply the second equation by -5 so we can cancel out our x-terms.

-5\times(x+2y=4) \rightarrow -5x - 10y = -20

Therefore, our system now becomes:

\displaystyle\left \{ {{5x+9y=16} \atop {-5x-10y=-20}} \right.

Now, we can add these two equations together and solve for y.

\displaystyle(5x + 9y) + (-5x - 10y) = 0 - y\\\\16 + (-20) = -4\\\\-y = -4\\\\\frac{-y}{-1}=\frac{-4}{-1}\\\\y = 4

Now, we can substitute our value for y into one of the equations and solve for x.

x+2(4)=4\\\\x + 8 = 4\\\\x = -4

Therefore, our final solution is (-4, 4).

6 0
3 years ago
C is the midpoint of AB . AC=2x +2 and AB=8x. Set up an equation and showing all steps, solve for x and length CB.
olga55 [171]

See the attached drawing for a visual.

Since we know that AC = CB is half the length of AB, we can write that in equation form. The goal is to determine the length of CB = AC = 2x+2

2x+2 =\frac{1}{2} (8x)

2x+2 = 4x

2x = 2

x=1

Now that we know the value of x, we can find the value of CB = 2x+2:

CB = 2x+2

CB = 2(1)+2

CB = 4


8 0
3 years ago
Other questions:
  • the probability that jenya recieves 4 spam-emails is 4% . If she recieves 520 emails a week, how many can you expect to be spam?
    6·1 answer
  • the grocery store is 3.76 kilometers from ryan house and 1.67 kilometers from abby house how much farther does ryan live from th
    14·1 answer
  • Please help! Which one is it!?
    5·1 answer
  • Help -8(9n-10) -20 a. 90n+54 b. -72n+60 c. -17n – 80 d. -160n
    10·2 answers
  • 9. Find the mean of the following sets of numbers<br>2.4.6. 12.7.19​
    13·1 answer
  • Jdudjdjdjkdjdkxkdjndjd
    6·1 answer
  • If my teacher has 45 hair pieces and she cuts 38 how many does she have left
    5·1 answer
  • What is the area of the polygon shown above? Show all your work. Please include the appropriate units in your answer.
    7·1 answer
  • Find the value of x. Only need 7 and 9 answered.
    8·1 answer
  • 4/5 divided by 1/3 pls help&lt;3 also I know it might be easy but I'm an 1d10t so-
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!