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
oksano4ka [1.4K]
3 years ago
14

If 6 pounds of apples cost $9, how much would 21 pounds of apples cost?​

Mathematics
2 answers:
Vinvika [58]3 years ago
7 0

Answer:

$31.50

Step-by-step explanation:

divide 9 by 6 to get the price per pound ($1.50), then multiply that by 21 to get the close of 21 pounds of apples ($31.50)

bixtya [17]3 years ago
3 0

Answer: it's 31.5

Step-by-step explanation:because you would times 9 by 21 then divide by 6

9*21=189

189/6=31.5

You might be interested in
70% of the students applying to a university are accepted. Assume the requirements for a binomial experiment are satisfied for 1
marshall27 [118]

Answer:

a) 0.3826

b) 0.9894

Step-by-step explanation:

We are given the following information:

We treat students accepted at university as a success.

P(students accepted at university) = 70% = 0.70

Then the number of students accepted at university 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 = 10

a) P( 8 or more will be accepted)

P(x \geq 8) = P(x = 8) + P(x = 9) + P(X=10)\\\\= \binom{10}{8}(0.7)^8(1-0.7)^2 +  \binom{10}{9}(0.7)^9(1-0.7)^1+ \binom{10}{10}(0.7)^{10}(1-0.7)^0\\\\= 0.2334 + 0.1210 + 0.0282\\= 0.3826

b) P(4 or more will be accepted)

P(x \geq 4) =1 - P(x = 0) - P(x = 1) - P(X=2)-P(x=3)\\\\=1 - ( \binom{10}{0}(0.7)^0(1-0.7)^{10} +  \binom{10}{1}(0.7)^1(1-0.7)^9+ \binom{10}{2}(0.7)^{2}(1-0.7)^8+ \binom{10}{3}(0.7)^{3}(1-0.7)^7 )\\\\= 1 - 0.0106\\= 0.9894

6 0
3 years ago
Write a polynomial function with the zeros 1, -2i
Helga [31]
F( x ) = ( x - 1 ) ( x + 2i )( x - 2i ), because the zeroes are 1, -2i, +2i ;
f( x ) = ( x - 1 )( x^2 - 4i^2 ) = ( x - 1 )( x^2 + 4 ) = x^3  - x^2 + 4x - 4 ;
7 0
2 years ago
Measure (7x+1) (2x+1)
Gemiola [76]

Smaller angle = 41°

Larger angle = 139°

Step-by-step explanation:

(7x - 1) + (2x + 1) = 180

7x + 2x - 1 + 1 = 180

9x = 180

x = 20

  • The measure of the smaller angle is

2x + 1

= 2(20) + 1

= 40 + 1

<u>= 41°</u>

  • The measure of the larger angle is

7x - 1

= 7(20) - 1

= 140 - 1

<u>= 139°</u>

4 0
2 years ago
Read 2 more answers
Each sales associate at an electronics store has a choice of the two salary option shown below: 115 per week plus 9.5% commissio
Annette [7]
$450 per week earns you $450 total per week, for $<span>23,400 total
$115 per week earns you that plus 9.5% of $125,000, which is $</span>11,875, plus $5,980 which is $<span>17,855 total
There is a $</span><span>5,545 difference, making the $450 a week a better deal</span>
5 0
3 years ago
Jayce looks around at an assembly. He notices his younger sister to his right and his older brother 48 feet ahead of him. If Jay
olganol [36]

Answer:

I think it's 50

Step-by-step explanation:

48

49

50

51

52

50 8s inbetween the two

6 0
3 years ago
Other questions:
  • Can you help me?
    7·1 answer
  • E. SAS<br> f. SSS<br> g. HL<br> h.AA
    10·1 answer
  • What is the answer for my math test
    13·1 answer
  • What is the answer to this
    13·2 answers
  • Let U represent the set of people in a certain community who were asked if they subscribe to an information source. Let D ={ x ∈
    15·1 answer
  • The sum of two numbers is 52. The greater number is 4 more than the smaller number. Which equation can be used to solve for the
    15·1 answer
  • -7x=x² + 12
    6·1 answer
  • Is an estimate of 28,000 over or under the actual product of 365 and 68? How can you tell? over; because both were rounded up ov
    7·1 answer
  • The question is in the picture
    9·2 answers
  • HELPPPPPPPP!!!! In 1.6, we learned about rational exponents. In a rational exponent, the numerator is the power that the base of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!