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
lys-0071 [83]
3 years ago
13

What is the variable x in 40+10x=5x-30

Mathematics
1 answer:
konstantin123 [22]3 years ago
4 0

40 + 10x = 5x - 30

To begin isolating x, subtract 40 from both sides.

40 + 10x - 40 = 5x - 30 - 40

10x = 5x - 70

Subtract 5x from both sides.

10x - 5x= 5x - 70 - 5x

5x = -70

Finally, divide both sides by 5.

5x/5 = -70/5

x = -14

Answer:

x = -14

You might be interested in
The projectile motion of an object can be modeled using s(t)=gt^2+v0t+s0, where g is the acceleration due to gravity, t is the t
RSB [31]

Answer:

S(t) = -4.9t^2 + Vot + 282.24

Step-by-step explanation:

Since the rocket is launched from the ground, So = 0 and S(t) = 0

Using s(t)=gt^2+v0t+s0 to get time t

Where g acceleration due to gravity = -4.9m/s^2. and

initial velocity = 39.2 m/a

0 = -4.9t2 + 39.2t

4.9t = 39.2

t = 8s

Substitute t in the model equation

S(t) = -49(8^2) + 3.92(8) + So

Let S(t) =0

0 = - 313.6 + 31.36 + So

So = 282.24m

The equation that can be used to model the height of the rocket after t seconds will be:

S(t) = -4.9t^2 + Vot + 282.24

7 0
3 years ago
Read 2 more answers
B) Two less than the square of a number​
Furkat [3]
??? Where’s the rest of that problem
8 0
3 years ago
HELP ME PLEASE!! Word problem, what's wrong? explain.
dmitriy555 [2]

Answer:

She made a mistake in Step 7.

Step-by-step explanation:

Step 1 through 6 are correct. Only from Step 6 to Step 7 the problem comes in: both sides of the equation are multiplied by x, however the x on the left side, by error, becomes 1. The correct state in Step 7 should look like this:

x(\frac{1}{2}P-x)=256

8 0
3 years ago
What is the value of x?
pantera1 [17]

x=9 because the triangle is equilateral which means every side is equal to 60. When you do the math you get 7x-3=60 which is 7x=63 and 63/7=9

7 0
3 years ago
Read 2 more answers
Plsss help it due today I don’t understand how to do this plssss don’t just take the points
tensa zangetsu [6.8K]

Answer:

d a m i dont even know this

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Write the equation −2x−4y=−8 in slope-intercept form. Then graph the line described by the equation.
    12·1 answer
  • What is the value of x?<br><br><br><br> Enter your answer in the box.<br> x =
    8·1 answer
  • Write 2784 in expanded notation as the sum of multiplication expressions using multiples of 10
    6·1 answer
  • Triangles ABC and EDC are outlined on a bridge. The triangles share vertex C and angles D and B are right angles. A new bridge s
    7·1 answer
  • 8 1/8 divided by 2 1/2
    13·1 answer
  • For the following graph , determine the coordinates of the vertex and the y intercept of the parabola.
    8·2 answers
  • If r and s are positive real numbers, which expression is equivalent to r^2/3 s^1/2/ rs
    15·2 answers
  • 93 A carpenter has two different boards
    13·2 answers
  • What is 4 + 7 ?!?!?!?!?
    8·2 answers
  • Find the value of X.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!