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danielamadrid79
14.08.2021 •
Mathematics
On the planet Tott, there are 9 frenks to every 8 vreels. If farmer Yoy
has 80 frenks on her rew farm, how many vreels are on the farm?
Round to the nearest tenth if rounding is needed?
Solved
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Ответ:
71.1 vreels on the farm
Step-by-step explanation:
Create a proportion where x is how many vreels are on the farm:
Cross multiply and solve for x:
9x = 640
x = 71.1
So, to the nearest tenth, there are 71.1 vreels on the farm.
Ответ:
there are solutions for all values of k
Step-by-step explanation:
In order for there to be no real solutions, the value of the discriminant must be negative. For this equation, the discriminant is ...
(-(k+2))^2 -4(3)(k-1)
We want to find values of k for which this is negative:
(k^2 +4k +4) -12k +12 < 0
k^2 -8k +16 < 0
(k -4)^2 < 0
A square is never negative, so there are no values of k that result in the equation having no solutions.