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
melamori03 [73]
3 years ago
15

Solve for x. 8= 2x + 4

Mathematics
2 answers:
andriy [413]3 years ago
7 0

Answer:

2

Step-by-step explanation:

2x + 4 = 8

subtract 4 from both sides

2x = 4

divide by 2

x = 2

Mkey [24]3 years ago
5 0

Answer:

x=2

Step-by-step explanation:

Subtract 4 from 8

4 = 2x

Divide 4 by 2x

x = 2

You might be interested in
What percentage of babies born in the United States are classified as having a low birthweight (<2500g)? explain how you got
lawyer [7]

Answer:

2.28% of babies born in the United States having a low birth weight.

Step-by-step explanation:

<u>The complete question is</u>: In the United States, birth weights of newborn babies are approximately normally distributed with a mean of μ = 3,500 g and a standard deviation of σ = 500 g. What percent of babies born in the United States are classified as having a low birth weight (< 2,500 g)? Explain how you got your answer.

We are given that in the United States, birth weights of newborn babies are approximately normally distributed with a mean of μ = 3,500 g and a standard deviation of σ = 500 g.

Let X = <u><em>birth weights of newborn babies</em></u>

The z-score probability distribution for the normal distribution is given by;

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

where, \mu = population mean = 3,500 g

            \sigma = standard deviation = 500 g

So, X ~ N(\mu=3500, \sigma^{2} = 500)

Now, the percent of babies born in the United States having a low birth weight is given by = P(X < 2500 mg)

         

   P(X < 2500 mg) = P( \frac{X-\mu}{\sigma} < \frac{2500-3500}{500} ) = P(Z < -2) = 1 - P(Z \leq 2)

                                                                 = 1 - 0.97725 = 0.02275 or 2.28%

The above probability is calculated by looking at the value of x = 2 in the z table which has an area of 0.97725.

4 0
3 years ago
A rectangle length was 4 feet longer than triple the length of it width
wlad13 [49]
Length is 48 ft

The perimeter of a rectangle is equal to the sum of all side’s.
2(lengths)+2(widths)= perimeter
Length=3x+4
Now given the perimeter of 140
3(3x+4)+3(x)=140
9x+12+3x=140
12x+12=140
12x=128
X= 10.7
10.7 is the width

Length=3x+4
Length =3(10.6)+4
Length=31.8+4
Length=35.8
Answer = 35.8
This can only be answered if you were given a perimeter.
4 0
3 years ago
This is an area in which objects will interact with a magnet
Basile [38]
Answer: magnetic field
7 0
2 years ago
8% of 70 is what number? (please explain)
Bingel [31]
Do a proportion
8/100= x/70
Cross multiply and divide
70 x 8= 560
560 divided by 100= 5.6
Answer is 5.6

You also could have done .08 x 70 which is also 5.6
7 0
3 years ago
Do 4-11 for brainliest questions are really easy.
nasty-shy [4]

Yes, yes here is the and your answer Tu respuesta es fácil, solo divídela entre 3 y ahí tienes tu respuesta. De nada por ayudarlo a resolver las preguntas 4 a 11

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
    11·1 answer
  • You can work no more than 60 hours each week at your two jobs. Dog walking pays $7 per hour and your sales job at Computers &amp
    10·2 answers
  • Find the mean and median of these data 2,5,9,11,17,19
    6·2 answers
  • How do I find this formula?<br><br> Trapizoid:b1=3 m;b2=4 m;A=7m2
    7·2 answers
  • An item sells for $40 . The sales tax on the item is 8%. What is the sales tax and total cost?
    6·1 answer
  • How to do this question plz answer me step by step plzz plz ​
    11·1 answer
  • Write an equation in slope-intercept form when given the slope and y-intercetp. Slope = 0 y-intercept = -3​
    12·2 answers
  • HELP PLEASE!! Can someone please check if my answer is right??!!
    14·1 answer
  • 5x² - 4x + 7 - (2x² - 2x - 3)<br> resolver paso a paso <br> xfas
    7·1 answer
  • Please help me
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!