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
elena-s [515]
2 years ago
13

Everything in the store was at 30% discount . A dress was originally for 65$ . What was the discount price ?

Mathematics
2 answers:
erik [133]2 years ago
6 0
45.50 is your answer
Bezzdna [24]2 years ago
3 0

Answer: $45.50

Step-by-step explanation:

30% discount means 30% off the original price

1. find 30% of 65$

=.3*65

=19.5

2. subtract that from 65$

=65-19.5

=45.5

the discount price was $45.50

You might be interested in
The brand manager for a brand toothpaste must plan a campaign designed to increase brand recognition. He wants to first determin
bulgar [2K]

We need to find out how many adults must the brand manager survey in order to be 90% confident that his estimate is within five percentage points of the true population percentage.

From the given data we know that our confidence level is 90%. From Standard Normal Table we know that the critical level at 90% confidence level is 1.645. In other words, Z_{Critical}=1.645.

We also know that E=5% or E=0.05

Also, since, \hat{p} is not given, we will assume that \hat{p}=0.5. This is because, the formula that we use will have \hat{p}(1-\hat{p}) in the expression and that will be maximum only when \hat{p}=0.5. (For any other value of \hat{p}, we will get a value less than 0.25. For example if, \hat{p} is 0.4, then 1-\hat{p}=0.6 and thus, \hat{p}(1-\hat{p})=0.24.).

We will now use the formula

n=(\frac{Z_{Critical}}{E})^2\hat{p}(1-\hat{p})

We will now substitute all the data that we have and we will get

n=(\frac{1.645}{0.05})^2\times0.5(1-0.5)

n=(32.9)^2\times0.25

n=270.6025

which can approximated to n=271.

So, the brand manager needs a sample size of 271

3 0
3 years ago
A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is
Hitman42 [59]

Answer:

red 420 times

Step-by-step explanation:

The results show red (18)  out of ( 18+10+7+19+6)

  18 / 60

18/60  *   1400 = 420 times

7 0
2 years ago
Eric randomly surveyed 150 adults from a certain city and asked which team in a contest they were rooting​ for, either North Hig
Romashka-Z-Leto [24]

Answer:

B

Step-by-step explanation:

  • A 95% confidence level interval will have 0.52 (lower interval) & 0.68 (upper interval) which means that that if 90 individuals root for North HS then p value is 0.6 which will fall in the 95% confidence interval range.
  • For the option B the p value will also be same as in case A hence B is true as an alternative hypothesis.
  • We can calculate P value

         Confidence Interval = p ± z \sqrt{p(1-p)/n}

         

4 0
3 years ago
Can someone please answer this!
Rus_ich [418]

Answer:

Answer is 49

Step-by-step explanation:

Add all the ratios up you get 21 so then you divide 147 by 21 thus giving you 1 ratio = 7 respectively, and we know the ratio of the red is 7 because it's stated red, blue, and green -> 7,6,8. So then 7 * 7 = 49. And to confirm you can do (7*7)+(6*7)+(8*7) which should equal 147

7 0
3 years ago
Read 2 more answers
Which choice represents the expression below as a single exponential
Lostsunrise [7]

Answer:

D

Step-by-step explanation:

When multiplying numbers with the same base but different exponents, add the exponents together.

4 0
2 years ago
Other questions:
  • Find the 90% confidence interval for the population standard deviation given the following.
    14·1 answer
  • -16x-18y=58 x and y solution of equation
    14·1 answer
  • Austin needs to memorize words on a vocabulary list for German class he has memorized 22 of the words which is one half of the l
    8·1 answer
  • How many odd positive integers less than 300 can be written using the numbers 2,4,5,and 8
    5·1 answer
  • 1) Calcule:
    8·1 answer
  • Solve the system of equations​
    6·1 answer
  • YALL I NEED SOME HELP FAST!!! ALL THE AWNSERS PLEASE IM BEGGING YOU PLEASE PLEASE!!!!
    15·2 answers
  • Find dy/dx of y=csc(square root of x)
    9·1 answer
  • Y = 2.5(5)x<br> Pls helpppp
    11·2 answers
  • And this one <br> the equation up top is f(x)=-2x^2+3
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!