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
MrRa [10]
2 years ago
7

Dont need method i just need to sleep rn quickly answer this then i sleep :) 4(5x-2)=2(9x+3)

Mathematics
1 answer:
Sunny_sXe [5.5K]2 years ago
7 0

Answer:

x=7

Step-by-step explanation:

4(5x-2)=2(9x+3) do everything in the parentheses

20x-8=18x+6

+8 +8

20x=18x+14
get X by itself by adding same terms

20x=18x+14

-18x -18x

2x=14 divide

/2 /2

X=7

You might be interested in
A gymnastics center charges a one-time membership fee of $35.75. In addition, the center charges its members $55.50 per class. W
Nitella [24]
I am pretty sure the correct answer is $146.75. Hope this helps!!!!!!!
7 0
3 years ago
Read 2 more answers
A cube with 40-cm-long sides is sitting on the bottom of an aquarium in which the water is one meter deep. (Round your answers t
Molodets [167]

Answer:

940.8 N

1254.4 N

Step-by-step explanation:

I would think the questions would be to calculate the forces at the top of the cube and at the sides. Thus:

On the top:

F = pressure * area

P = density * gravity * height

the height would be:

1m - 0.4m = 0.6m

replacing:

P = 1000 * 9.8 * 0.6 = 5880

A = (0.4) ^ 2 = 0.16

F = 5880 * 0.16

F = 940.8 N

On the sides:

dF = d * g * h * dA

dA = 0.4 * dh replacing

dF = 1000 * 9.8 * h * 0.4 * dh

dF = 3920 * h * dh

We integrate both sides and we have:

F = 3920 * (h ^ 2/2), h = 0.6 up to h = 1

F = (3920/2) * (1 ^ 2 - 0.6 ^ 2)

F = 1254.4 N

3 0
3 years ago
The surface area of 3ft, 7ft, 2ft
Xelga [282]

Answer: 82 ft squared

Step-by-step explanation: The surface area is 2( wl + hl + hw)

so the width is 2 the length is 7 and the height is 3

so it's 2( 14 + 21 + 6) = 2(41) = 82

6 0
3 years ago
Write an equation for this trend line
jeka94

Answer:

y=-1/3x+8 i think

Step-by-step explanation:

3 0
3 years ago
The score of golfers for a particular course follows a normal distribution that has a mean of 73 and a standard deviation of 3.
Artemon [7]

Answer:

P(X \geq 74) = 0.3707

Step-by-step explanation:

We are given that the score of golfers for a particular course follows a normal distribution that has a mean of 73 and a standard deviation of 3.

Let X = Score of golfers

So, X ~ N(\mu=73,\sigma^{2}=3^{2})

The z score probability distribution is given by;

           Z = \frac{X-\mu}{\sigma} ~ N(0,1)

where, \mu = population mean = 73

           \sigma = standard deviation = 3

So, the probability that the score of golfer is at least 74 is given by = P(X \geq 74)

 P(X \geq 74) = P( \frac{X-\mu}{\sigma} \geq \frac{74-73}{3} ) = P(Z \geq 0.33) = 1 - P(Z < 0.33)

                                               =  1 - 0.62930 = 0.3707                  

Therefore, the probability that the score of golfer is at least 74 is 0.3707 .

3 0
3 years ago
Other questions:
  • Harry has decided to give his collection of 24 old coins to his four grandsons. John, the oldest, gets half the collection. Walt
    14·2 answers
  • I still cant figure it out . ughh −2∣5w−7∣+9=−7
    7·2 answers
  • In the diagram below, \overrightarrow{QR}
    15·1 answer
  • What is 745,305 in expanded form
    6·2 answers
  • A laboratory tested 85 chicken eggs and found that the mean amount of cholesterol was 190 milligrams. Assume that the sample sta
    13·1 answer
  • Please help us don't really get it
    6·1 answer
  • Need help asap!! Will give brainliest
    11·1 answer
  • I nEED HELP PLEASE!! ILL GIVE BRAINLIEST!!!!
    8·1 answer
  • Can somebody solve this for me please?
    7·1 answer
  • Yeah I’m done with Brainly, they getting rid of my account now, have these points
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!