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
Sedaia [141]
2 years ago
5

The cost of 40 candy bars is $30 how much does 15 cost

Mathematics
1 answer:
stiks02 [169]2 years ago
5 0

Answer:$20

Step-by-step explanation: We first need to figure out how much a single candy is worth. To do that we need to divide 40 candy bars by $30. 40/30 is equal to 4/3 or $1.33 dollars each. Now we multiply 15 by the price of a single candy bar which is 4/3 or 1.33 dollars. 4/3*15 is $20.

You might be interested in
Factor completely: X^3-5x^2-9x+45
lesantik [10]

Answer:

x^2(3x-5)-9(x_5)

I think that is the answer and hope you will benefit from it

4 0
3 years ago
Read 2 more answers
The mayor of a town has proposed a plan for the construction of a new community. A political study took a sample of 800 voters i
Hunter-Best [27]

Answer:

A political strategist wants to test the claim that the percentage of residents who favor construction is more than  30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: p \leq 0.3

Alternative hypothesis p >0.3

Step-by-step explanation:

We have the following info given from the problem:

n= 800 the random sample of voters selected from the town

\hat p = 0.34 represent the proportion of residents favored construction

p_o = 0.30 represent the value desired to test.

A political strategist wants to test the claim that the percentage of residents who favor construction is more than  30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: p \leq 0.3

Alternative hypothesis p >0.3

And in order to test this hypothesis we can use a one sample z test for a population proportion and the statistic would be given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

And with the data given we have:

z=\frac{0.34 -0.3}{\sqrt{\frac{0.3(1-0.3)}{800}}}=2.469  

7 0
2 years ago
HELPPP PLEASE I NEED AN ANSWER
mina [271]

Answer:

C

Step-by-step explanation:

4 0
2 years ago
Find the value of x. The diagram is not to scale.
DiKsa [7]

Sum of interior angles in a pentagon=540°

148+112+2x+2x+10+90=540

360+4x=540

4x=540-360

4x=180

x=180/4

x=45°

5 0
2 years ago
Forty is 40% less than what number
kirza4 [7]

40 = n-.40n

40 =n(1-.4)

40 = n(.6

divide by .6 on each side

40/.6 =n

n=66 2/3



5 0
3 years ago
Other questions:
  • Two fifths of the children in the nursery were boys. What was the ratio of boys to girls in the nursery?
    7·1 answer
  • Martin only likes to type in numbers from zero to nine. He doesn't really like odd numbers, however. Which numbers, in ascending
    13·2 answers
  • The ratio of the lengths of corresponding parts in two similar solids is 5:1,
    7·2 answers
  • Valuate the line integral, where c is the given curve. ∫c zdx + xdy + ydz
    6·1 answer
  • What are the solutions to the equation x² = 169? <br><br>Choose all answers that are correct
    5·2 answers
  • How much table top space do they have between the 2 tables
    9·1 answer
  • What is the solution to the following system? 3x+3y=10<br> -9x-9y=-30
    10·2 answers
  • HELP!!! =∆=<br><br>Applying the Pythagorean theorem, solve this triangle.​
    9·2 answers
  • A colored chip is yellow on one side and red on the other. The chip was flipped 50 times and landed on yellow side up 28 times.
    8·1 answer
  • Giving brainlist please help me out
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!