<u>Given:</u>
No. of protons = 8
No. of Neutrons = 9
No. of electrons = 8
<u>To find:</u>
Atomic mass =?
<u>Formula to be used:</u>
Atomic mass = No. of protons + No. of Neutrons
<u>Answer:</u>
Atomic mass = No. of protons + No. of Neutrons
Atomic mass = 8 + 9
Atomic mass = 11
<u>Explanation:</u>
Atom is composed of three subatomic particles namely proton, electron, and neutron. The composition of these sub atomic particles is used to calculate the atomic mass.
The atomic mass of the element is nothing but the sum up value of the total <em>number of protons and neutrons</em> present in the nucleus of the atom of the element.
According to the given data, the atomic mass of the element with 8 protons and 9 neutrons is found as <em>11</em>.
Answer:
C
Explanation:
meiosis increases the genetic variability due to mixing of genetic material between chromosomes.
it produces genetic variation by a process known as recombination.
Answer:
yes i do
Explanation:
i personally think gmc and chevy are the best truck made, but thats just my opinion.
*Given
Percent of the wolves which are female - 55%
Percent of the wolves which hunt
in medium-sized packs - 20%
Percent of the wolves which are both
female and hunt in medium-sized
packs - 15%
*Solution
<u>Assuming that there is a total of one hundred wolves in the species, </u>
1. Since percent (%) means "per 100" or "for every 100" then,
a. The number of female wolves is
(55 female wolves / 100 wolves) * 100 wolves total = 55 female wolves
b. The number of wolves that hunt in medium-sized packs is
(20 wolves / 100 wolves) * 100 wolves total = 20 wolves
Note that the 20 wolves is a mixture of male and female wolves.
c. The number of female wolves that hunt in medium-sized packs is
(15 female wolves / 100 wolves) * 100 wolves total = 15 female wolves
2. Because there is a total of 55 female wolves in the species, and 15 of these wolves hunt in medium-sized packs, then the number of female wolves that do not hunt in medium-sized packs is,
55 female wolves total - 15 female wolves hunting = 40 female wolves not
in medium-sized packs hunting in medium
sized packs
3. To find the proportion, we can express the answer in terms of percent (%) or in fraction, which is usually how proportions are expressed.
For every 100 wolves, there are 40 female wolves that do not hunt in medium-sized packs. This can be expressed as a proportion of
<span> <u> 40 </u>
</span> 100
and simplified by dividing both the numerator and denominator by 10, we get,
<span><u> 40/10 </u>
</span> 100/10
<span><u> 4 </u>
</span> 10
When this is expressed in percent, we multiply the fraction or proportion by 100% to get,
<span><u> 4 </u> x 100% = 40%
</span> 10
Thus, the proportion of female wolves that do not hunt in medium sized packs is 4/10 or 0.4. When expressed as percent, this is 40%.
Answer:
he use to group beans I may be wrong
Explanation: