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
sveta [45]
3 years ago
8

Mrs katz is buying apples and carrot cake for a school party.the apples cost $2.12 per pound.the carrot costs $19.75 estimate th

e cost for 3 pounds of apples and 1 cake

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
5 0

a rough estimate is 26 because 20+2(3)=26

3 pounds of apples are 6.36

19.75+ 2.12(3) = 26.11

You might be interested in
A manager records the repair cost for 4 randomly selected stereos. A sample mean of $82.64 and standard deviation of $14.32 are
zysi [14]

Answer:

CI = (70.861 , 94.418)

Step-by-step explanation:

In order to determine the 90% confidence interval you use the following formula (for a population approximately normal):

CI=(\overline{x}-Z_{\alpha/2}\frac{\sigma}{\sqrt{n}},\overline{x}+Z_{\alpha/2}\frac{\sigma}{\sqrt{n}})    (1)

\overline{x}: mean = 82.64

σ: standard deviation = 14.32

n: sample = 4

α: tail area = 1 - 0.9 = 0.1

Z_α/2 = Z_0.05: Z factor =  1.645

You replace these values and you obtain:

Z_{0.05}(\frac{14.32}{\sqrt{4}})=(1.645)(\frac{14.32}{\sqrt{4}})=11.778

The confidence interval will be:

CI=(82.64-11.778,82.64+11.778)=(70.861,94.418)

The 90% confidence interval is (70.861 , 94.418)

6 0
4 years ago
Give an example of two numbers that both have six digits, it the greater number is determined by the hundreds place.
spayn [35]

Answer:

565,463 and 565,863

Step-by-step explanation:

7 0
4 years ago
Find all square roots of 8100?
Nikitich [7]
The Square Root Of 8100 Is 90. That Will Be The Only Square Root Because The Square Root Of 90 Is A Decimal So You Would Stop There.
8 0
3 years ago
Read 2 more answers
Find the value of x in the following proportion:
prisoha [69]

Answer:

12

Step-by-step explanation:

6 0
3 years ago
How do I solve 6=1/2z
ahrayia [7]

Answer:

z=12

Step-by-step explanation:

divide by 1/2 to get the variable z by itself

3 0
3 years ago
Other questions:
  • OMG, I'm so confused. Help me pls!
    6·2 answers
  • What is the area of a rectangle with a length 20 yd and a width of 16 yd?
    11·2 answers
  • Please help! I'll upvote answers.
    6·1 answer
  • Triangle ABC is translated to create triangle DFG as shown in image
    15·1 answer
  • Can’t get this right, please help!!
    6·1 answer
  • Solving using inverse operation 83 + q = 125 q =
    9·2 answers
  • 65 ppl are at a movie and if 40% of them purchase sodas, how many ppl is this that have a soda?
    13·2 answers
  • Solve <img src="https://tex.z-dn.net/?f=%5Cfrac%7B6x%2B7%7D%7B5%7D%20%3D2x-4" id="TexFormula1" title="\frac{6x+7}{5} =2x-4" alt=
    13·2 answers
  • the weight of 3 kittins at one week of age were 3.6 ounces 4.2ounces and 3.3 ounces if each kitten has gained 2.3ounces how much
    6·1 answer
  • Find the value of x.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!