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
ELEN [110]
3 years ago
5

ASAP PLEASEEEEEEEE

Mathematics
1 answer:
shtirl [24]3 years ago
5 0

Answer:

x = -122/13 OR 9.3846

Step-by-step explanation:

First, take a look at the second equation. Add 8x to the other side.

-7y= 8x -18

Then, divide by -7 to get a regular "y=" equation.

y= 8/7x -18/7

Move on the the first equation. Let's get "y" by itself. Add 3x to the other side.

y= 3x +15

Considering both equations are equal to Y, set them equal ( except the "y" part )

8/7x - 18/7 = 3x + 15

Multiply all by seven so that there are no fractions.

8x - 18 = 21x + 105

Subtract 8x from both sides.

-17 = 13x + 105

Subtract 105 from both sides.

-122 = 13x

Divide by 13 on both sides.

x = 9.3846

Or if you don't want decimals, just say x = -122/13

Quick Note: I made a mistake. I had looked at the second equation at -18. The answer is incorrect but the method of solving is correct. Also, make sure to plug in the value of x to get Y.

You might be interested in
Evaluate the line integral, where c is the given curve. c y3 ds,
postnew [5]
Parameterizing \mathcal C by

\mathbf r(t)=(t^3,t)

with 0\le t\le2, we have

\mathrm ds=\|\mathbf r'(t)\|\,\mathrm dt=\sqrt{(3t^2)^2+1^2}\,\mathrm dt=\sqrt{9t^4+1}\,\mathrm dt

So

\displaystyle\int_{\mathcal C}y^3\,\mathrm ds=\int_{t=0}^{t=2}t^3\sqrt{9t^4+1}\,\mathrm dt
=\displaystyle\frac1{36}\int_0^236t^3\sqrt{9t^4+1}\,\mathrm dt
=\displaystyle\frac1{36}\int_{u=1}^{u=145}\sqrt u\,\mathrm du
=\dfrac{145^{3/2}-1}{54}
5 0
3 years ago
6. The table shows the equations Ms. Valez discussed in math class today.
k0ka [10]

Answer:

One zero is always added when the power is added by +1

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Help‼️‼️‼️Answer part 3,4,5 and give several equations for each show your work‼️
soldi70 [24.7K]

Answer:

I'd really love to help you but the way you asked made you sound so needy and that just made me not want to answer sorry...

Step-by-step explanation:

5 0
3 years ago
All of the following operations are used to solve for X in the equation below except one. Which one is it ? 9x-2=4x+8 A. Additio
gtnhenbr [62]

Step-by-step explanation:

9x - 2 = 4x + 8 → (9-4)x = 8 + 2 → 5x = 10 → x = 10/2 = 5

C. multiplication

Multiplication not used

5 0
2 years ago
Solve 12^2+5x-4 =12^2x+6
torisob [31]

answer I got was x=6/139 or x=-0.0431655

7 0
3 years ago
Other questions:
  • If 3x-2+5x=2,find the value of 3x
    11·1 answer
  • Find the length of segment EK and the coordinates of its midpoint if E(13,8) and K(7,2) Round to the
    6·1 answer
  • X + 12 = -5. solve using subtraction property of equality.
    7·2 answers
  • A gerbil cage,priced at $18, is discounted 20% for one week, and then this price is marked up 20%. is the price back to 20% expl
    13·1 answer
  • PLEASE HURRY HELP MEEEEE
    6·1 answer
  • Manny wants to cover the windows in his home with either wood blinds or curtains. He has 35 windows that he would like to cover,
    15·1 answer
  • What is the value of X?
    7·1 answer
  • What is the limit as X is approaching 1?
    5·1 answer
  • 1) - 2a - 3 = 8 - 8a
    9·2 answers
  • Can someone tell me if this is the correct choice?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!