Brainliest pls?
Answer:
They could cover 90 kilometres in 6 hours, after the terrain changed.
Step-by-step explanation:
Their speed, when they were traversing through the marsh, is:
speed = distance/time
s = 20 km / 4hr
s = 5 kmph
If their speed tripled, then it will be: 5*3 = 15 kmph
distance = speed * time
d = 15 km/h * 6h
d = 90 km
They could cover 90 kilometres in 6 hours, after the terrain changed.
Answer:
if it is easy i can do it
hope it helps
Answer:
i dont understand ur question
Step-by-step explanation:
sorry
Answer:
it`s not true that for every person, if the person is happy, the person has a large income/there are people that are happy and doesn't have large incomes
Step-by-step explanation:
let be x the group of people in the world
let be I(X)=x has a large income
let be H(x)=x is happy
Having a large income is not a necessary condition for a person to be happy.
¬∀x, H(x)-->I(x)
<em>it`s not true that for every person, if the person is happy, the person has a large income</em>
∃x / H(x)^¬I(x)
<em>there are people that are happy and doesn't have large incomes</em>
Step-by-step explanation:
4x^2 - 20 = 5
4x^2 -25 = 0
4x^2 = 25
2x = 5, or -5
x = 5/2 , or -5/2
