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
sp2606 [1]
3 years ago
13

What is 30% of $500?

Mathematics
2 answers:
ch4aika [34]3 years ago
6 0
You can do a quick multiplication: 0.3 x $500 = $150.

You can also do it in your head - you know 30% of 100 is 30, so if you have 5 100's then 30% of that is 5 30's, or 150.
Lelu [443]3 years ago
3 0
30% of 500 is 150, hope this helps ^.^
You might be interested in
If a certain machine makes electrical resistors having a mean resistance of 40 ohms and a standard deviation of 2 ohms, what is
V125BC [204]

Answer:

The probability is  P(\= X  <  40.4) = 0.84134

Step-by-step explanation:

From the question we are told that

   The mean is  \mu =40 \ \Omega

   The standard deviation is  \sigma  = 2 \ \Omega

   The sample size is  n = 25

    The combined resistance is   \sum x_i = 1010 \ \Omega

Generally the sample mean is mathematically represented as

      \= x  = \frac{\sum x_i }{n}

=>   \= x  = \frac{1010 }{25}

=>   \= x  = 40.4 \ \Omega

Generally the standard error of the mean is mathematically represented as

     \sigma_{x} = \frac{\sigma }{\sqrt{n} }

=>  \sigma_{x} = \frac{ 2 }{\sqrt{25} }

=>  \sigma_{x} = 0.4

Generally the probability that a random sample of 25 of these resistors will have a combined resistance of less than 1010 ohms is mathematically represented as

       P(\= X  <  40.4) = P( \frac{\= X - \mu }{\sigma_{x }} <  \frac{ 40.4 - 40 }{0.4}  )

\frac{\= X -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ \= X )

    P(\= X  <  40.4) = P( Z <  1 )

From the z table  the area under the normal curve to the left corresponding to  1 is

     P(\= X  <  40.4) = P( Z <  1 ) = 0.84134

     P(\= X  <  40.4) = 0.84134

3 0
3 years ago
PLEASE HELP!! ABD and DBC are complementary angles. 70, what's the measurement of x?
Studentka2010 [4]
It is 45 because complementary means 90
6 0
3 years ago
Read 2 more answers
7(x-8)<br> thanksss please helpp
AlexFokin [52]
The answer is 7x-56.
6 0
3 years ago
How to solve this problem
SSSSS [86.1K]

Answer:

AB = BC = 2√2

Step-by-step explanation:

Start by focusing on the 45 degree angle.  The unknown AB is the side adjacent to this 45 degree angle, and the hypotenuse is known to be 4.

Thus,

cos 45 degrees = adj / hyp = AB / 4, or

AB = 4 cos 45 degrees = 4 (1 / √2) =

    4            √2

----------- * --------- = 2√2

   √2          √2

Since this is a 45-45-90 triangle, the two shorter sides are equal, and so BC = 2√2 also.

3 0
3 years ago
Determine which is the graph of the given function.
Grace [21]

Answer:

See attached picture and description below.

Step-by-step explanation:

Graph each equation as you would graph any linear function. Plot the y-intercept for the first equation at (0,5) then move down 0.5 units and to the right 1 unit. This is the right boundary and should be plotted with an open circle. (red graph.

The second equation should be graphed starting at the y-intercept (0,-2.5) then proceeding down 0.5 units and over 1 unit to the right. (blue graph)

See graph below for complete graph.

3 0
4 years ago
Read 2 more answers
Other questions:
  • 3 folders cost $2.91
    13·2 answers
  • Is-6 is greater then -4.50
    8·1 answer
  • you can grow 4 pounds of wheat per square meter of farmland.if you grow 3600 pounds of wheat on a square farm,what is the length
    9·2 answers
  • Hi lol i don't need help with anything
    5·1 answer
  • 1. Bill decided to buy six books on history instead
    5·1 answer
  • Write the equation of the line parallel to y= 5/4x + 5/4 That passes through the point (-2,3)
    12·1 answer
  • . Charlotte buys two biscuits and a carton of milk for $5.00.
    15·2 answers
  • Help!!!!!! DUE RNN!!!!!!!!!!
    9·2 answers
  • No links and no false answers please help i'll mark you the brainlest
    8·1 answer
  • 10 POINTS! Need help before the end of class.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!