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
gizmo_the_mogwai [7]
3 years ago
5

A mother of six has money saved in a jar. She gave the money

Mathematics
2 answers:
zloy xaker [14]3 years ago
5 0

Answer:

30

Step-by-step explanation:

because he had 6 children, each one gave him 5 so it would be 6x5 = 30 and he gave one to 2 but then he had 7

MAVERICK [17]3 years ago
3 0

Answer: 5 dollars

Step-by-step explanation:

If Bella had 7 dollars after she was given 2 extra dollars, she had 5 dollars originally. 7-2=5.

Hope this helps!

You might be interested in
Using the net below, find the surface area<br> of the pyramid.<br> 4 cm<br> 2 cm<br> 2cm
IrinaVladis [17]
20 cm^2. Type in 20.
2*4 makes 8 divided by two makes 4. There are four sides so do 4*4 to make 16. 2*2 for the middle to make 4. 16+4 makes 20 cm^2
5 0
2 years ago
Read 2 more answers
John had 5/8 of a pizza left after a party. He gave 3/8 of a pizza to his friends to take home and kept the rest.
lorasvet [3.4K]

I'm assuming your trying to find how much pizza he has left.

 You need to subtract the two fractions because the denominators are already the same.

When subtracting fractions, you leave the denominator and regularly subtract the numerator.

Your answer will be 2/8 which equals 1/4th 

6 0
3 years ago
Read 2 more answers
A cube-shaped gift box has a volume of 8 cubic inches what is the side length of the box
mihalych1998 [28]

V = s^3

8 = s^3

8 = 2^3

s=2 inches

6 0
3 years ago
Read 2 more answers
PLS HELP ASAP!! WILL MARK BRAINLYIST
son4ous [18]

Answer:

$39,851.25

Step-by-step explanation:

If the sales increase at a rate of 9% per year, this means it will be 109% of the previous year's value since 100% + 9% = 109%

109% in decimal form = 109/100 = 1.09

Therefore, the exponential function is:

y = 20000 \cdot 1.09^x, where x is the number of years

So when x=8,  

y = 20000 \cdot 1.09^8=39851.252...

After 8 years, annual sales = $39,851.25

7 0
2 years ago
Wires manufactured for use in a computer system are specified to have resistances between 0.11 and 0.13 ohms. The actual measure
Marina CMI [18]

Answer:

a) P(0.11

And we can find this probability with this difference and with the normal standard table or excel:

P(-1.11

b) P(0.11 < \bar X < 0.13)

And we can use the z score defined by:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And using the limits we got:

z = \frac{0.11-0.12}{\frac{0.009}{\sqrt{4}}}= -2.22

z = \frac{0.13-0.12}{\frac{0.009}{\sqrt{4}}}= 2.22

And we want to find this probability:

P(-2.22< Z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Part a

Let X the random variable that represent the resitances of a population, and for this case we know the distribution for X is given by:

X \sim N(0.12,0.009)  

Where \mu=0.12 and \sigma=0.009

We are interested on this probability

P(0.11

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(0.11

And we can find this probability with this difference and with the normal standard table or excel:

P(-1.11

Part b

We select a sample size of n =4. And since the distribution for X is normal then we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And we want this probability:

P(0.11 < \bar X < 0.13)

And we can use the z score defined by:

z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And using the limits we got:

z = \frac{0.11-0.12}{\frac{0.009}{\sqrt{4}}}= -2.22

z = \frac{0.13-0.12}{\frac{0.009}{\sqrt{4}}}= 2.22

And we want to find this probability:

P(-2.22< Z

4 0
3 years ago
Read 2 more answers
Other questions:
  • How do you graph y=-3|x-3|+1
    8·1 answer
  • The volume of a sphere is 5000 pi meters cubed. What is the surface area
    6·1 answer
  • A triangular prism has a height of 6 meters and a triangular base with the following dimensions.
    15·2 answers
  • Four friends share 3 sheets of construction paper equally.What fraction of a sheet of paper does each friend get?
    6·2 answers
  • A sports camp has a total of $2,880 to purchase new equipment. They need baseballs and baseball gloves. A pack of baseballs cost
    13·1 answer
  • Tram left a tip of $9, which was StartFraction 3 over 20 EndFraction of the total cost of the food. Which shows the correct equa
    13·1 answer
  • An article valued $120 was increased by 12%. determine the new value
    9·2 answers
  • What is the distance between the sun and the earth in kilometers?
    9·1 answer
  • An art teacher is distributing supplies for the community center art class. Every fourth student gets a tube of paint. Every sev
    8·1 answer
  • Please help! I need to turn this in today.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!