Answer:
see explanation
Step-by-step explanation:
given that r varies jointly with x and y then the equation relating them is
r = kxy ← k is the constant of variation
To find k use the condition r = 15 when x = 3 and y = 4
k = = = 1.25
r = 1.25xy ← equation of variation
When x = 16 and y = 1.25, then
r = 1.25 × 16 × 1.25 = 25
3.264 x 10<span>9 i got taught this in 5th grade</span>
Answer:
The following graph has no solution.
Step-by-step explanation:
Since , we are given a system of inequalities as:
x+y>4
and x+y<3
So from the two in equalities we could clearly see that in one the sum of x+y>4 while in the other the sun x+y<3 which is not possible.
This could also be seen from the graph.
The graph will not have any common region and are parallel lines.
Hence, the graph has no solution.
Well you know that $85 is 100% then half of that is 50% and I guess find 15% and add all of it to get 265%
The answer is The liquid must be in the cooler fewer than 10 minutes. This is because 3 × 10 is 30 and so it would lose 30° after 10 minutes, which makes it 60°, so if the liquid is in the cooler longer than 10 minutes then the temperature becomes less than 60°.