Answer:
45 km/hr
Explanation:
total distance = 90
Increased speed = x+15
90/x - 90/x+15=1/2
90(1/x - 1/x+15)=1/2
90(x+15-x/x^2+15x)=1/2
equation is:
x^2+15x-2700=0
x^2+60x-45x-2700=0
x(x+60)-45(x+60)=0
(x+60)(x-45)=0
x= -60, x=45
reject the negative value = -60
usual speed=45 km/ hr
That's survival 101. If you lived near streams you were guaranteed water. Also near streams the soil was rich was a key factor of agriculture. This was a key factor of life. If you look in todays world, most of the world population is found near bodies of water. Hope I helped. :)
In this application of a phenomenon called <u>conditioned taste aversion</u><u>,</u> the toads researchers used are a(n) <u>_</u><u>CS</u><u>____</u>.
Explanation:
- A type of <u>associative learning </u><u>technique</u> in which the animals learn to associate the taste of a certain food with certain illness symptoms caused by toxic,spoiled or Poisonous food item is known as C<u>onditioned taste aversion.</u>
- This phenomenon is also called as <u> "Sauce-Bearnaise Syndrome".</u>
- It was in the year 1950 john Garcia demonstrated this phenomenon
Answer:
Contemporary settlements and farming practices currently threaten the lifestyle of the Hadza. They have lost between 75 percent and 90 percent of their land over the past 50 years. In the Yaeda Valley of Tanzania, women and children set out to collect tubers, a staple food of the Hadza people.
Explanation:
The answer is the Federalists. The Federalists believed that a strong government was necessary for the new nation.
