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
ivanzaharov [21]
3 years ago
13

What does 15 and 16 mean

Mathematics
1 answer:
Law Incorporation [45]3 years ago
7 0
Seems like a proportions problem
In 15, you have 3 boxes and your partner has 1. Total 4 boxes. Each represents 12/4=3 hours. So you have 3 boxes = 3*3=9 hours and your friend has 3 hours.

Same method in 16. You have 4 and your friend has 8
You might be interested in
Answers because I need help
kramer

Answer:

f(x)

Step-by-step explanation:

the function f(x) crosses the y-axis higher than either of the other functions, therefore it has the largest y-intercept

6 0
3 years ago
Read 2 more answers
This is a problem involving absolute value<br> |-3| - |-17| =
den301095 [7]
That means the same as 3-17 so the answer is -14
7 0
3 years ago
Read 2 more answers
Jane has a average score of 73% on three quizzes. What must she score on the next quiz to have an average of 78%?
Ket [755]

Answer:

93

Step-by-step explanation:

The average is calculated as

average = \frac{sum}{count}

On 3 quizzes

\frac{sum}{3} = 73 ( multiply both sides by 3 )

sum = 219

On 4 quizzes, letting x be the score on fourth test

\frac{sum+x}{4} = 78 ( multiply both sides by 4 )

sum + x = 312 , that is

219 + x = 312 ( subtract 219 from both sides )

x = 93

She must score 93 on the next quiz

4 0
3 years ago
There are many regulations for catching lobsters off the coast of New England including required permits, allowable gear, and si
Georgia [21]

Answer:

Probability that the sample mean carapace length is more than 4.25 inches = 0.9993

Step-by-step explanation:

Given - There are many regulations for catching lobsters off the coast

             of New England including required permits, allowable gear, and

             size prohibitions. The Massachusetts Division of Marine Fisheries

             requires a minimum carapace length measured from a rear eye

             socket to the center line of the body shell. For a particular local

             municipality, any lobster measuring less than 3.37 inches must

             be returned to the ocean. The mean carapace length of the  

             lobsters is 4.01 inches with a standard deviation of 2.13 inches.

             A random sample of 60 lobsters is obtained.

To find - What is the probability that the sample mean carapace length

              is more than 4.25 inches?

Proof -

Given that, μ = 4.01, σ = 2.13 , n = 60

Now,

μₓ⁻ = σ / √n

    = \frac{2.13}{\sqrt{60} }

    = \frac{2.13}{7.746} = 0.275

⇒μₓ⁻ = 0.275

Now,

P(X⁻ > 3.37) = 1 - P( X⁻ <  3.37)

                   = 1 - P(z <  \frac{3.37 - 4.25}{0.275} )

                   = 1 - P( z < -3.2 )

                   = 1 - 0.0007

                   = 0.9993

⇒P(X⁻ > 3.37) = 0.9993

∴ we get

Probability that the sample mean carapace length is more than 4.25 inches = 0.9993

6 0
2 years ago
What’s is the answer for 9-(-3)
grigory [225]

Answer:

negative times A negative is a positive so your answer is 27

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • How do you simplify this expression using positive exponents?<br>​
    10·1 answer
  • Help me pls..................
    9·1 answer
  • How do you factor out an expression
    10·1 answer
  • Enter your answer in the box.<br>The triangles are similar.<br>What is the value of x?​
    12·1 answer
  • If sine theta equals three over four, what are the values of cos θ and tan θ?
    5·1 answer
  • There were 64 quarts of juice in a barrel. Then, 16 quarts of juice were dumped out and replaced with 16 quarts of water. After
    5·2 answers
  • Please help due very soon!!
    11·1 answer
  • PLEASE HELP ME :) 20 points
    13·1 answer
  • The volume of the rectangular pyramid is 120 m^3. The height, h,
    13·1 answer
  • I’ll give you a lot of points for this
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!