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
d1i1m1o1n [39]
4 years ago
7

One bottle of shampoo cost $6 for 8 ounces. A second bottle costs $4 for 5 ounces of shampoo. Which has the lower unit rate. How

much lower
Mathematics
1 answer:
ser-zykov [4K]4 years ago
8 0
The $4 for 5 ounces because think about how much 1 ounce would be so that's how you would get your answer it tells you which on is the lowest
You might be interested in
4-It has been a bad day for the market, with 70% of securities losing value. You are evaluating a portfolio of 20 securities and
riadik2000 [5.3K]

Answer:

b) 0.0007

c) 0.4163

d) 0.2375

Step-by-step explanation:

We are given the following:

We treat securities lose value as a success.

P(Security lose value) = 70% = 0.7

Then the securities lose value follows a binomial distribution, where

P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}

where n is the total number of observations, x is the number of success, p is the probability of success.

Now, we are given n = 20.

a) Assumptions

  • There are 20 independent trials.
  • Each trial have two possible outcome: security loose value or security does not lose value.
  • The probability for success of each trial is same, p = 0.7

b) P(all 20 securities lose value)

We have to evaluate:

P(x = 20)\\= \binom{20}{0}(0.7)^0(1-0.7)^{20}\\= 0.0007

0.0007 is the probability that all 20 securities lose value.

c) P(at least 15 of them lose value.)

P(x \geq 15)\\= P(x=15) + P(x = 16) + P(x=17) + P(x=18) +P(x = 19) +P(x = 20)\\ \binom{20}{15}(0.7)^{15}(1-0.7)^{5} +...+ \binom{20}{20}(0.7)^{20}(1-0.7)^{0} \\=0.4163

d) P(less than 5 of them gain value.)

P(gain value) = 1 - 0.7 = 0.3

P(x < 5)\\= P(x=0) + P(x = 1) + P(x=2) + P(x=3) +P(x = 4)\\ \binom{20}{0}(0.3)^{0}(1-0.3)^{20} +...+ \binom{20}{4}(0.3)^{4}(1-0.3)^{16} \\=0.2375

7 0
4 years ago
olivia is making scarves. each scarf will have 5 rectangles, and 2/5 of the rectangles will be purple. how many purple rectangle
Ipatiy [6.2K]
We have to find how many purple rectangles does Olivia need for 3 scarves. We know that each scarf will have 5 rectangles and 2/5 of the rectangles will be purple: 2/5 * 5 = 2. It means that each scarf will have 2 purple rectangles. And for 3 scarves : 3 * 2 = 6. Answer: She needs <span>6 purple rectangles.</span>
5 0
3 years ago
A shirt is priced at $12. What is the price after a 5% discount and 6% sales tax?
Alex787 [66]
Discount of 5
6% tax

100-5=95
100+6=106

12*0.95*1.06=12.084


the price is $12.08
3 0
3 years ago
Read 2 more answers
What is the LCMs of 6,2,22
kati45 [8]
The LCM of 6,2,and 22 is 66.

Happy studying ^-^
4 0
3 years ago
I need help!!!!!!!!!!!!!!
stira [4]
The answer would have to be d
7 0
3 years ago
Read 2 more answers
Other questions:
  • The altitude of an airplane is the height of the airplane above ground. what do you think the altitude of a triangle is?
    11·1 answer
  • A boat has a top speed of 4949 knots​ (nautical miles per​ hour). what is this speed in miles per​ hour?
    13·1 answer
  • Help on question 11. A) please
    8·1 answer
  • A certain game consists of rolling a single fair die and pays off as follows: $7 for a 6, $2 for a 5, $1 for a 4, and no payoff
    7·1 answer
  • Can someone please help and explain? thank you. will give brainliest
    7·1 answer
  • 1.sum of three consecutive even numbers is 12 the number are<br>0,5,7<br>1,3,8<br>2,4,6​
    10·2 answers
  • Read carefully pls ty
    12·2 answers
  • Paul had a job during his summer vacation. He earned $8.75 per hour. He worked 20 hours per week for 8 weeks. How much money did
    10·2 answers
  • Help help PLEASE i will love you for eternity, THATS IF I GET IT RIGHT
    12·1 answer
  • The photography club has 36 memebers, 16 girls and 20 boys. what is the ratio of girls to boys in the photography club?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!