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
kolbaska11 [484]
2 years ago
14

dion bought 4 pizzas was the same price if he also brought a salad for 5 and paid a total of 41 how much did each pizza cost

Mathematics
2 answers:
Lina20 [59]2 years ago
8 0

Answer:

Each pizza cost $9

Step-by-step explanation:

$41 - $5= 36

36 divided by 4= 9

qwelly [4]2 years ago
3 0

Answer:

8$ per pizza

Step-by-step explanation:

41 total $ -5 salad=36 36 divideded by 4 pizzas=8 $per pizza

You might be interested in
A simple random sample of size nequals81 is obtained from a population with mu equals 83 and sigma equals 27. ​(a) Describe the
Ivanshal [37]

Answer:

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

With:

\mu_{\bar X}= 83

\sigma_{\bar X}=\frac{27}{\sqrt{81}}= 3

b) z= \frac{89-83}{\frac{27}{\sqrt{81}}}= 2

P(Z>2) = 1-P(Z

c) z= \frac{75.65-83}{\frac{27}{\sqrt{81}}}= -2.45

P(Z

d) z= \frac{89.3-83}{\frac{27}{\sqrt{81}}}= 2.1

z= \frac{79.4-83}{\frac{27}{\sqrt{81}}}= -1.2

P(-1.2

Step-by-step explanation:

For this case we know the following propoertis for the random variable X

\mu = 83, \sigma = 27

We select a sample size of n = 81

Part a

Since the sample size is large enough we can use the central limit distribution and the distribution for the sampel mean on this case would be:

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

With:

\mu_{\bar X}= 83

\sigma_{\bar X}=\frac{27}{\sqrt{81}}= 3

Part b

We want this probability:

P(\bar X>89)

We can use the z score formula given by:

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

And if we find the z score for 89 we got:

z= \frac{89-83}{\frac{27}{\sqrt{81}}}= 2

P(Z>2) = 1-P(Z

Part c

P(\bar X

We can use the z score formula given by:

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

And if we find the z score for 75.65 we got:

z= \frac{75.65-83}{\frac{27}{\sqrt{81}}}= -2.45

P(Z

Part d

We want this probability:

P(79.4 < \bar X < 89.3)

We find the z scores:

z= \frac{89.3-83}{\frac{27}{\sqrt{81}}}= 2.1

z= \frac{79.4-83}{\frac{27}{\sqrt{81}}}= -1.2

P(-1.2

8 0
3 years ago
The half-life of the radioactive isotope gallium-70 is 20 minutes. The initial amount of gallium-70 is 25 milligrams. When will
stiv31 [10]

Answer:

Whether or not a given isotope is radioactive is a characteristic of that particular isotope. Some isotopes are stable indefinitely, while others are radioactive and decay through a characteristic form of emission. As time passes, less and less of the radioactive isotope will be present, and the level of radioactivity decreases. An interesting and useful aspect of radioactive decay is half-life, which is the amount of time it takes for one-half of a radioactive isotope to decay. The half-life of a specific radioactive isotope is constant; it is unaffected by coTnditions and is independent of the initial amount of that isotope.

6 0
3 years ago
Read 2 more answers
If AB = 10, what is the length of DE?<br><br> 11<br> 3<br> 12<br> 5
Oliga [24]
The answer is 11. Hope this helped.
3 0
3 years ago
Read 2 more answers
Why do we subtract the x values and subtract the y values?
Anestetic [448]

Answer:

Because you have to get the answer

Step-by-step explanation:

5 0
3 years ago
What is the slope of a line that passes through the points (5, 12) and (8, -1)
Pachacha [2.7K]

Answer:

m = -4.33333 or -4 and 1/3

Step-by-step explanation:

gradient = (difference in y)/(difference in X)

m = (-1-12)/(8-5)

m = -13/3

m = -4.3333333

4 0
2 years ago
Other questions:
  • Plz help i attached a photo
    5·1 answer
  • What is the area of this polygon?
    5·1 answer
  • A cubic meter (m³) is ________. a cubic centimeter (cm³).
    14·2 answers
  • The denominator of a fraction in the simplest form is greater than the numerator by 1. If 4 is added to the numerator, and 3 is
    13·1 answer
  • HELP ASAP PLZ I NEED IT
    7·1 answer
  • What is the average rate of change between f (1) and f (5) in the function f (x) = x2 - x - 6 ?
    8·1 answer
  • Please answer truefully i giv you brainlistet
    8·1 answer
  • Please help me ASAP AND explain the steps plz. Zymirah earns 5% commission on all sales at a jewelry store plus $10 an hour. Yes
    10·1 answer
  • Eight less than a number is 19 __________
    5·2 answers
  • The length of a rectangle is 5cm more than its breadth . if the perimeter of the rectangle is 40 cm , find the dimensions f the
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!