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
valentina_108 [34]
2 years ago
15

Need both, if 5 is worked out pls work it out. thank you​

Mathematics
2 answers:
Mars2501 [29]2 years ago
4 0
The answer is A 80 hop this helps …………..
andreyandreev [35.5K]2 years ago
3 0

Answer:

A : 80

Step-by-step explanation:

You might be interested in
The selling price of a shirt before sales tax 10$.the finial price of a shirt including sales tax is 12.5 .what is the rate of t
maw [93]
$11.25 because 10 times 1.125 is equal to 11.25
7 0
2 years ago
Karl drove 619.5 miles. For each gallon of gas, the car can travel 41 miles. What is a reasonable estimate of the number of gall
dusya [7]

Answer:

15

Step-by-step explanation:

Calculation for What is a reasonable estimate of the number of gallons of gas Karl used

Estimated number of gallons used=619.5 miles/41 miles

Estimated number of gallons used=15

Therefore the reasonable estimate of the number of gallons of gas Karl used is 15

6 0
2 years ago
Can somebody please help me
erik [133]

Answer:

d=3 and e=-1

Step-by-step explanation:

d+e=2

d=2-e-----(1)

d-e=4-----(2)

substituting (1) in (2)

2-e-e=4

-2e=2

e=-1-----(3)

substituting (3) in (1)

d=2-(-1)

d=3

6 0
3 years ago
Suppose that a jewelry store tracked the amount of emeralds they sold each week to more accurately estimate how many emeralds to
RUDIKE [14]

Answer:

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

And for this case the 95% confidence interval is given by (2.13; 2.37)

We have a point of estimate for the sample mean with this formula:

\bar X = \frac{Upper+ Lower}{2}= \frac{3.37+2.13}{2}= 2.75

And for the margin of error we have the following estimation:

ME= \frac{Upper -Lower}{2}= \frac{3.37-2.13}{2}= 0.62

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

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".

\bar X represent the sample mean

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

Solution to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

And for this case the 95% confidence interval is given by (2.13; 2.37)

We have a point of estimate for the sample mean with this formula:

\bar X = \frac{Upper+ Lower}{2}= \frac{3.37+2.13}{2}= 2.75

And for the margin of error we have the following estimation:

ME= \frac{Upper -Lower}{2}= \frac{3.37-2.13}{2}= 0.62

5 0
3 years ago
Yooo I just had MAD diarrhea D:
kow [346]
I’m sorry I usually drink water you can lose a lot of water while doing that . Try to not a lot maybe some crackers
5 0
3 years ago
Other questions:
  • The sum of a number and eight is zero
    13·1 answer
  • +38+9y=+2 what does y equal
    8·2 answers
  • Computer table measures 10ft by 17ft. Cost of table is $16 per sq ft. How much will the table cost.
    5·1 answer
  • This is timed and Will mark BRAINLIEST!!!
    12·1 answer
  • Sebastian got estimates from 7 companies for his kitchen remodel: $ 27,500 ; $31,000 ; $36,000 ; $92, 000; $29,000 ; $30,500 ; $
    10·1 answer
  • F 4 boxes of apples weigh 75.6 lb, how much do 8.5 boxes of apples weigh?
    8·1 answer
  • Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (
    12·2 answers
  • (a)A train completed a journey of 850 kilometres with an average speed of 80 km/hr.
    11·1 answer
  • Help with 4 please thank you
    14·1 answer
  • Over which interval on the x-axis is there a negative
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!