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
Katarina [22]
3 years ago
8

Use the data to calculate the percentage remaining for samples Y and Z to the nearest tenth of a percent.

Biology
2 answers:
marusya05 [52]3 years ago
5 0

Answer:

Y= 98, 0% , Z = 94,7 %

Explanation:

We use simple 3 rules to find the percentage of purity, using mass data:

Sample Y =

85g----100%

83,30g----X = (83,30gx 100%)/ 85g= 98, 0%

Sample Z =

95g----100%

90g----X = (90gx 100%)/ 95g= 94, 7%

Hunter-Best [27]3 years ago
4 0

Answer:

98.0, 94.7

Explanation:

From the image, the percentage remaining (PR) can be mathematically computed as:

PR = final mass/initial mass x 100%

PR for sample Y = final mass of Y/initial mass Y x 100%

= 83.30/85.00 x 100% = 98.0% (to the nearest tenth of a percent)

PR for sample Z = final mass of Z/initial mass of Z x 100%

= 90.00/95.00 x 100% = 94.7% (to the nearest tenth of a percent)

<em>Hence, the percentage remaining of sample Y is 98.0 percent and that of sample Z is 94.7% </em>

You might be interested in
What is the relationship between global winds and global ocean currents?
kirza4 [7]
The answer is AAAAAAAA
8 0
2 years ago
How many chromosome in total are there?
stiv31 [10]

Answer:

46 chromosomes Hope this helps in any way!

Explanation:

5 0
3 years ago
Read 2 more answers
Help please! Describe the process of natural selection and how it affects hummingbird populations.
Kipish [7]

<span>Natural selection has 4 processes.</span>

<span>Individuals looks different and have different characteristics from another within their own species (genetic variation). Some characteristics suits better for the environment, which has to be passed on from one generation to the next. The humming birds with long bills will mate with those that have that too so they'll produce offspring with long bills. </span>

<span>The second process is over production of offspring. The humming birds produces lots of offspring but only a few survives. </span>

<span>Another factor of natural selection is struggle for existence, which leads to differential survival and reproduction. There are environmental pressures, like not having enough space or food, for example, humming birds compete fiercely for resources like nectar. Natural selection will favor individuals that are more efficient at getting nectar and natural selection will result in changes in wing shape which can allow them to fly longer distance and affect the length and shape of bill for them to drink nectar. Little changes may affect how well they feed and survive. Those who are the fittest survives and are most likely to reproduce and pass on their advantageous genes to their offspring. If the long bills are more advantageous and can survive better in a particular environment, then overtime, those with short bills will disappear because they can't survive and the entire population would have long bills.</span>

4 0
3 years ago
Introduction species can threaten Biodiversity because they _______.
Vesnalui [34]
B. Cause biological magnification
8 0
3 years ago
A change in _____________ and _____________ cause the enzyme to denature.
il63 [147K]

Explanation:

A change in temperature and PH cause the enzyme to denature.

If u like my answer just give brainliest please.

5 0
2 years ago
Other questions:
  • Which statements about the modification of chromatin structure in eukaryotes are true?1. Acetylation of histone tails is a rever
    7·1 answer
  • Almost every type of cell contains this central, spherical body
    9·1 answer
  • Early, flawed dna models proposed by watson and crick and by linus pauling correctly described which property of dna? early, fla
    12·1 answer
  • Oceans play an important role in determining climate change. Ocean circulation affects the climate through the atmospheric conce
    12·1 answer
  • What the cell of the fish?
    9·1 answer
  • What is the term for all of the population in a particular region
    15·2 answers
  • What effect does gravity have on stars?<br>​
    14·1 answer
  • Answer the questions below. Will mark the correct answer as brainliest and report irrelevant answers.
    7·1 answer
  • 1 point
    6·1 answer
  • I need help on this question pls help
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!