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
Basile [38]
3 years ago
6

I really need help i’m going to fail so answer if you can ! <3

Mathematics
1 answer:
Volgvan3 years ago
8 0

Answer:

110

Step-by-step explanation:

you place 30 in the place of X, and it becomes 4×30-10. in PEMDAS, multiplication goes first and 4×30=120. 120-10=110

You might be interested in
A new basketball is 40% off of its original price and is now selling for $36.00. What was the original price of the basketball b
VikaD [51]
Multiply 40% and 36.00 than add what you get to 36.
6 0
3 years ago
The nicotine content in a single cigarette of a particular brand has a distribution with mean 0.9 mg and standard deviation 0.1
Ad libitum [116K]

Answer:

The answer to the question is;

The probability that the resulting sample mean of nicotine content will be less than 0.89 is 0.1587 or 15.87 %.

Step-by-step explanation:

The mean of the distribution = 0.9 mg

The standard deviation of the sample = 0.1 mg

The size of the sample = 100

The mean of he sample = 0.89

The z score for sample mean is given by

Z =\frac{X-\mu}{\sigma/ \sqrt{n} } where

X = Mean of the sample

μ = Mean of the population

σ = Standard deviation of the population

Therefore Z = \frac{0.89-0.90}{0.1/\sqrt{100} } = -1

From the standard probabilities table we have the probability for  a z value of -1.0 = 0.1587

Therefore the probability that the resulting sample mean will be less than 0.89 = 0.1587 That is the probability that the mean is will be less than 0.89 is 15.87 % probability.

             

7 0
4 years ago
1.
givi [52]

43-7= 36

Range is highest number minus smallest number

6 0
3 years ago
Read 2 more answers
If mZDEC = (12x - 3), mZBCE =
kati45 [8]

Answer:

Step-by-step explanation:

12x - 3 = 180 - (7x - 26) supplementary angles

19x = 209

   x = 11

m∠DEC = 12(11) - 3 = 129°

m∠BCE = 7(11) - 26 = 51°

M∠ADE = 129 - 72 = 57°  exterior angle rule

m∠EDB = 180 - 57 = 123° supplementary angles

m∠DBC = 57° corresponding angle to ADE

3 0
3 years ago
2x+2y=10 solve for x
irakobra [83]

Isolate the x. Note the equal sign. What you do to one side you do to the other.


Subtract 2y from both sides


2x + 2y (-2y) = 10 (-2y)


2x = 10 - 2y


Isolate the x, divide 2 from both sides and from all terms.


(2x)/2 = (10 - 2y)/2


x = 5 - y


Place the variable in the front


x = -y + 5


x = -y + 5 is your answer


hope this helps

7 0
3 years ago
Other questions:
  • Write the fraction in simplest from 8/10
    5·2 answers
  • The gear ratio describes the ratio of one gear's diameter to another gear in the same chain. The gear ratio between two specific
    14·1 answer
  • A scientist earning an annual salary of $49,839 gets a 4% raise. Estimate the new annual salary for this scientist.
    7·1 answer
  • There are 60 cars in a used car lot.
    14·1 answer
  • Find the value of x in the trapezoid below. Show equations and all work that leads to your answer.
    5·1 answer
  • 25 less then the quotient of 10 and a number in word form
    5·1 answer
  • Can someone please help me
    6·1 answer
  • The values in the table represent a linear function. what is the common difference of the associated arithmetic sequence?
    12·2 answers
  • Help me on this plzzz its timed
    13·1 answer
  • Please tell i really need the answer:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!