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
pishuonlain [190]
3 years ago
14

A student's grade goes from a 95 to a 65 in 3 weeks. Calculate

Biology
1 answer:
steposvetlana [31]3 years ago
5 0

-10grade/week

Explanation:

Given parameters:

Initial grade = 95grade

Final grade = 65grade

Time = 3weeks

Unknown parameter:

Rate of change of grade = ?

Solution:

Rate is defined as the change of a quantity with time.

 Rate of change of grade  = \frac{Final grade - Initial grade}{Time}

Rate of change of grade  = \frac{65 - 95}{3} = \frac{-30}{3}

Rate of change of grade = -10grade/week

The rate of change of the student's grade is -10grade/week. It implies that the grade of the student reduces by 10unit per week.

You might be interested in
Se efectúa un experimento en el que a la planta 1 se le suministra CO2 normal pero agua que contiene átomos de oxígeno radiactiv
algol [13]

Answer:

The Oxygen liberated in photosynthesis comes from photolysis of water.

The CHO formed from Calvin Cycle during photosynthesis comes from reduction of CO2 with H+ of photolysis of water.

Therefore,since Plant 1 contains labeled Oxygen(from water) it will give radioactive Oxygen as the byproduct of its photosynthesis. It CHO is normal.

However,Plant 2, will contain radioactive CHO,because its radioactive CO2 will be reduced by H+  from photolysis of water to form radioactive labeled  carbohydrate(CHO)

Explanation:

6 0
3 years ago
Can you identify the type of root by only looking at the structure of the leaf explain â
Blababa [14]

Answer:

Simple answer, yes.

Explanation:

Monocots have isobilateral leaf I.e both sides of the leaf are equally exposed to the sun.

Dicots have dorsiventral leaf I.e. ventral side is exposed to the sun more than the dorsal side.

They are very distinctly different from each other and can be separated easily, and so are their roots.

4 0
3 years ago
Pea flowers may be purple (P) or white (p). Pea seeds may be round (R) or wrinkled (r). What proportion of the offspring from a
soldi70 [24.7K]

Answer:

The correct answer is c. 3/16.

Explanation:

In the given question two traits being studied, the traits are flower color and seed shape.

This is a typical Mendel’s dihybrid cross. According to the question purple colour (P) and round seed (R) are dominant traits.

When heterozygous purple-flowered (Pp), round-seeded (Rr) individuals are crossed, four different types of plants are produced phenotypically in the ratio 9:3:3:1.Out of 16 offspring, 9 are purple flowered, round seeded pea plants, 3 pea plants are white-flower with round seed, 3 are purple- flower with wrinkled seed and 1 pea plant is white-flowered with wrinkled seed pea plant is produced.  

8 0
3 years ago
As an environment changes, and some organisms have a higher fitness than others, natural selection acts directly
grandymaker [24]

Answer:

<u><em>Hey There the correct answer would be is D. Individual organisms</em></u>

hope it helps!

5 0
3 years ago
Read 2 more answers
Is gas powered lawn mower a simple machine
Liono4ka [1.6K]

Answer:

A gas-powered lawn mower is a complex machine because for it to function it does more than one motion. For example, it has a wheel and axle system so it can move when powered. And it has a system of simple machines and other parts that are put together to accomplish the task of cutting grass.

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • A common symptom of pharyngitis is swelling of the anterior cervical lymph nodes. why might lymph nodes swell in the presence of
    13·1 answer
  • Where is the epicenter of this earthquake?
    5·2 answers
  • What is the name for the percentage of space not occupied by solid matter in
    13·2 answers
  • the diagram below represents the time a cell spends in the two main phases of the cell cycle. what is happening in the phase rep
    5·2 answers
  • If the engery (E) of a wave increases, what happens to the frequency (f) and the wavelength
    12·1 answer
  • 10 what are some major advantages and disadvantages of microwave transmission?
    14·1 answer
  • BEST ANSWER GETS BRAINLIEST
    11·1 answer
  • Hello please help i’ll give brainliest
    12·1 answer
  • What similarities and differences do DNA and RNA share in terms of function and structure? Explain!
    14·1 answer
  • What is "crossing over" ?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!