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
ludmilkaskok [199]
4 years ago
9

Giving 15 points for help!

Mathematics
2 answers:
kolezko [41]4 years ago
8 0

Answer: The correct statements are 'The equation 2n = p should be 2p = n' , 'The actual cost of the onions is $3.00 per pound' and 'Potatoes cost $1.50 per pound.'

Step-by-step explanation:

Here, p represents cost of one potato and n represents the cost of one onion.

And, According to the question,  He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18.

Therefore, 6p +3n = 18    ------(1)

And, Onions cost twice as much as potatoes.

Therefore, n= 2p ---------(2)

Putting the values of n from 2) in equation 1),

we get, 6p+3(2p)=18

⇒6p+6p=18 ⇒ 12p =18 ⇒ p = 1.5 dollar.

Thus cost of one potato= $1.5

And cost of one onion = $ 2× 1.5= $ 3.00

Thus with help of above explanation we can say that Options first, third and fifth are correct.

jek_recluse [69]4 years ago
3 0

The answer is 1,3,5

You might be interested in
Solve for all valúes of x
malfutka [58]

Answer:

2x/(x+3) +3/(x-3) = 8/(x^2

[2x(x-3) +3(x+3)]\( x^2 - 9) =8/(x^2 -9)

2x^2 -6x +3x +9=8 (x^2 -9) /(x^2 -9)

2 x^2 -3x +9 -8=0

2 x^2 -3x +1 =0

2x^2 -2x -1x +1 =0

2x(x-1) -1(x-1)=0

(x-1)(2x-1)=0

either, or, 2x-1=0

x-1 =0 2x =1

x =1 x= 1/2

hence, x= 1, 1/2

7 0
3 years ago
Which expression can be used to determine the slope of the linear function represented in the table?
Zigmanuir [339]
The third one because x2-x1 is divided by y2-y1

7 0
3 years ago
Read 2 more answers
Edward wants to spend less than $115 to buy a
nikdorinn [45]

Answer: x < 30

Step-by-step explanation:

Let the cost of a jean be x

cost of a shirt = $25

cost of 3 jeans = 3x

since he wants to spend less than $115 , this means that

3x + 25 < 115

3x < 115 - 25

3x < 90

x < 30

7 0
3 years ago
What is the equation of this line in slope-intercept form
Ugo [173]

Answer:

y=3/5x+3 i think

Step-by-step explanation:

3 is the y intercept, and to find the slope its rise over run so 3 up and 5 to the side, i hope this helps!!

5 0
3 years ago
A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll, n=918 and x=521 who said​ "
s2008m [1.1K]

Answer:

B) The margin of error is 0.0269.

C) The confidence interval is (0.5406, 0.5944).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

In the​ poll, n=918 and x=521 who said​ "yes."

This means that n = 918, \pi = \frac{521}{918} = 0.5675

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

B) Identify the value of the margin of error E.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

M = 1.645\sqrt{\frac{0.5675*0.4325}{918}} = 0.0269

The margin of error is 0.0269.

C) construct the confidence interval.

\pi \pm M

So

\pi - M = 0.5675 - 0.0269 = 0.5406

\pi + M = 0.5675 + 0.0269 = 0.5944

The confidence interval is (0.5406, 0.5944).

5 0
3 years ago
Other questions:
  • The titanic was 882 feet 9 inches long. how many inches long was the titanic?​
    15·2 answers
  • There are 144 people in line. There are twice as many adults as children in line .How many children in line and how many adults
    15·1 answer
  • Alexander Graham Bell, the inventor of the telephone, also invented a kite made out of "cells' shaped like triangular pyramids.
    14·1 answer
  • The population of Bulgaria has been decreasing at the annual rate of 0.89%. if the population of Bulgaria was about 7,450,349 in
    6·1 answer
  • Sasha has a recipe that uses 446cups of chocolate chips and 213cups of caramel, which makes 12 brownies. He has a total of 14 cu
    10·1 answer
  • A manager at a pizza shop wants to start visually checking finished pizzas, but she doesn't have time to check every pizza. She
    8·1 answer
  • Can anyone help with this?
    9·1 answer
  • Srekar needs to increase the size of the prism below by 2 inches on each side. The original prism has a length of 3, a depth of
    9·1 answer
  • The ratio of the side length of Square P to the side length of Square Q is 2:7. If the side length of Square P is 3.5 inches, wh
    9·1 answer
  • Identify the median and IQR of the data set below.20222426283032Your answerWhich dota
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!