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
Blababa [14]
3 years ago
13

There are 340 freshman at BHSS. This is one hundred less than two times the number of sophomores. Find the number of sophomores

at BHSS.
Mathematics
1 answer:
natta225 [31]3 years ago
5 0
To put it into an equation, it would be:

340 = 2x - 100

with x being the amount of sophomores at BHSS.

Solve it:

340 + 100 = 2x

2x = 440

x = 220

The number of sophomores at BHSS is 220.




You might be interested in
HELP!!! I NEED THIS DONE ASAP!
GarryVolchara [31]
20 and 7 Because 4x5 = 20
6 0
3 years ago
Read 2 more answers
At 7:00 A.M., Alicia pours a cup of tea whose temperature is 200°F. The tea starts to cool to room temperature (72°F). At 7:02 A
alexgriva [62]

Answer: A) Option B

B) 22.3 minutes.

Step-by-step explanation:

The temperature decreases in an exponential decrease, this means that we can write the equation as:

T(x) = A*r^x + B

Where A is the difference between the initial temperature and the room temperature, B is the room temperature, and r is a positive number smaller than 1, that says "how fast" the temperature decreases (and x is the variable, in units of time)

We know that the initial temperature

A = 200° - 72° = 128°

B = 72°

T(x) = 128°r^x + 72°

The only option with those two values is option B.

T(x) =  128(0.989)^x + 72

We should check that when x = 2m, the temperature must be 197°

T(2m) = 128*(0.989)^2 + 72 = 197.2° (that we can round down to 197°)

So this equation is correct

Now we want to find the time such the temperature is 172°F

then:

172° = 128°(0.989)^x + 72°

100° = 128°(0.989)^x

100/128 = (0.989)^x

x = ln(100/128)/ln(0.989) = 22.3 minutes.

Let's check in our equation:

T(22.3) =  128°(0.989)^22.3 + 72 = 172°

8 0
3 years ago
Jerry indicated that after tossing a penny 30 times, the relative frequency of heads was 0.47 (to the nearest hundredth). He ind
natali 33 [55]

Answer:

Incorrect.

Step-by-step explanation:

1 toss could not change the frequency by such a large margin 0.47 ---> 0.55.

The number of heads obtained in 30 tosses = 30 * 0.47 =  14.

So if the next toss came up heads the relative frequency of heads would be

15/31 = 0.48.

4 0
3 years ago
Safety regulations require that the time between airplane takeoffs (on the same runway) will be at least 3 minutes. When taking
Alenkinab [10]

Answer:

1.96 planes

Step-by-step explanation:

The computation of the number of planes is shown below:

As we know that

System Inventory  is

= Flow rate in the system × Throughput time

where,

Flow rate is

= Frequency of taken off

= 16 planes ÷ hour

= 16 ÷ 60 Planes per minute

Throughput time  is

=  runway waiting time + runway Run time

= 33 seconds +  6 minutes × 60 seconds + 48 seconds

= 441  seconds

= 441  per 60 seconds

Therefore the number of planes is

= \frac{441}{60} \times \frac{16}{60}

= 1.96 planes

4 0
3 years ago
HELP MEEEEE DONT DO IT FOR JUST POINTS :(
xz_007 [3.2K]

Answer:

compacting and sedimentation!

Step-by-step explanation:

sediments are basically lose rocks and debris, so going from sediments to b, is the process of the sendimentation being compressed together to create rocks! these rocks are called sedimentary rocks :)

6 0
3 years ago
Read 2 more answers
Other questions:
  • The diagram of PQR below shows the lengths of two sides and an altitude.
    7·1 answer
  • Quick! Easy Algebra 2 question, Rational expressions
    8·1 answer
  • find the volume of a trianglular prism that has a triangular base of 14 and and a height of 17 with a prism height of 5 leave yo
    7·1 answer
  • You are investing $6000 in an account earning 12% annual interest, compounded monthly.
    11·1 answer
  • What is the solution to the inequality x^2 >64
    13·1 answer
  • Find the length and area of a rectangular rug if the width of the rug is 12 feet and the diagonal measures 20 feet.
    10·2 answers
  • Please help!<br> look at the photo (again lol)
    11·2 answers
  • A line intersects the y-axis of the point (a, b) Is a = 0? Is b = 0? Explain.
    11·1 answer
  • What is the area???
    6·1 answer
  • This student incorrectly simplified this expression.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!