Answer:
75years
Explanation:
Let the Father's age be represented by 2x
Let the Son's age be represented by x
Five years ago;
Man's age will be = 2x - 5
Son's age will be = x - 5
If the ratio of their ages five years ago was 9:4, then;
2x - 5/x-5 = 9/4
4(2x - 5) = 9(x - 5)
8x - 20 = 9x - 45
- Collect like terms
-20 + 45 = 9x - 8x
25 = x
Hence, the son's age = 25 years
If x = 25, the father's age (2x) will be 2 × 25 = 50years
The sum of their ages will be = 25years + 50years = 75years
<span>Physiology is studying the function of a certain body part.
</span><span>Anatomy is learning about the relationship between body parts. </span>
i think...
Answer:
High quality of seeds.
Explanation:
92% of the seeds in a seed package will sprout if it has high quality because good quality seeds has the ability to germinate more than those seeds which are not of good quality. If the seed has high quality, it has more than 90% germination rate. If the seeds are infected by some disease or damaged due to mechanical means so these factors also affected the rate of germination.
Answer:
The balance of nature is a theory that proposes that ecological systems are usually in a stable equilibrium or homeostasis, which is to say that a small change will be corrected by some negative feedback that will bring the parameter back to its original "point of balance" with the rest of the system
Explanation:
