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
Paha777 [63]
3 years ago
13

A grocery wants to mix two kinds of candy one sells for $1.15 per pound and the other cells for $2.75 per pound he wants to make

s a total of 24 pounds and sell it for $1.30 per pound how many pounds of each kind should he use in the new mix
Mathematics
1 answer:
babunello [35]3 years ago
7 0

Answer:

$3.90

Step-by-step explanation:

You might be interested in
A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Houston. The stud
iris [78.8K]

Answer:

-0.048

Do not reject  H_0:P_1-P_2=0

Step-by-step explanation:

From the question we are told that

Sample size n_1=350

Sample size n_2=250

Sample proportion 1  \hat P= \frac{25}{350} =>0.07

Sample proportion 2 \hat P= \frac{19}{250} =>0.076

95% confidence interval

Generally for 95% confidence level

Level of significance

 \alpha = 1-0.95=>0.05

 \alpha /2=\frac{0.05}{2} =>0.025

Therefore

Z_a_/_2=1.96

Generally the equation for confidence interval between P_1 - P_2  is mathematically given as

(\hat P_1-\hat P_2)\pm Z_a_/_2\sqrt{\frac{\hat P_1(1-\hat P_1)}{n_1}+\frac{\hat P_2(1-\hat P_2)}{n_2}  }

(0.07-0.076)\pm 1.96\sqrt{\frac{0.07(1-0.07)}{350}+\frac{0.076(1-0.076)}{250}  }

(0.07-0.076)\pm 1.96\sqrt{4.66896*10^-^4  }

(-0.006)\pm 0.042

(-0.006)- 0.042=>-0.048

(-0.006)+ 0.042=>0.036

Therefore

Confidence interval is

-0.048

Conclusion

Given the confidence interval has zero

Therefore do not reject  H_0:P_1-P_2=0

6 0
2 years ago
Help please!!!!!!!<br> ASAP!
Leona [35]

Answer:

The third graph is correct

Step-by-step explanation:

Hiiii,

Since the sign is < and doesn't have a line underneath (or equal to), it means we have an open circle. We also know that the line has to go to the left because all the values that go to the left make the inequality true. If they go to the right, it won't be true because the value will be greater than 21 and we need it to be less than 21.

Hope this helps :)

8 0
3 years ago
Read 2 more answers
When Joseph first starts working at a grocery store, his hourly rate is $10. For each year he works at the grocery store, his ho
stiks02 [169]

Answer: R(t) = 10 + 0.50t

Step-by-step explanation:

From the question, we've been informed that Joseph's hourly rate is $10 and that for every year he works at the grocery store, his hourly rate increases by $0.50.

Therefore, the function will be

R(t) = 10 + 0.50t

4 0
3 years ago
The population of Medfield is 7000. Capital City's population is  of Medfield's. What is Capital City's population?
snow_tiger [21]
Since the Capital City's population is of Medfield's is 7000 please tell if you forgot something. Good luck
6 0
3 years ago
How are 1/4 of 12 and 12 divided by 4 related????
Jobisdone [24]
Both expressions are related because 12 divided by 4 equals to 3, and 1/4 of 12 equals to 3 too.
3 0
2 years ago
Other questions:
  • Lucy does the following problem incorrectly. Explain the error and redo the problem showing the correct answer. Lucy’s answer -1
    7·1 answer
  • Simplify <br><br> (1/2)^2 -6(2-2/3)
    7·2 answers
  • A map has a scale of 1 inch to 6 miles you have to walk to the Green store to purchase oats to feed your pet alpaca and the map
    14·1 answer
  • The number of bacteria in a culture is increasing according to the law of exponential growth. After 3 hours there are 100 bacter
    8·1 answer
  • Write the percentage below as a decimal. 15%
    12·1 answer
  • The list below show test scores for 1st period on a recent test. Finding the mean deviation. 62 63 64 71 96 97 98 99 100 100
    10·1 answer
  • If a and b represent numbers, which of the following statements represents the commutative property of multiplication?
    9·2 answers
  • The sum of 3 integers is 194. the sum of the first and second integers exceeds the third by 80. The third integer is 45 less tha
    11·1 answer
  • Evaluate the following expression.
    10·1 answer
  • Find the slope of this graph <br> Pls help i cant get anyone to help me
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!