Answer:
The possible value of q is
Step-by-step explanation:
step 1
we have
If 2.5 is a root of the equation
then
substitute the value of x=2.5 in the equation and solve for q
5(x + 3) + x = 4(x + 3) + 3
4 + 6(2 + x) = 2(3x + 8)
which one has no solutions ?
B 0.3
C 3
D 30
Answer:
0.003%
Step-by-step explanation:
you have to multiply this number by 100 which makes 0.3%
Answer
Find out the speed of the boat in still water .
To proof
Let us assume that the speed of the boat in still water be u .
As given
The speed of a stream is 4 mph
hence
speed upstream = u - 4
speed downstream = u + 4
Formula
As given
A boat travels 8 miles upstream in the same time it takes to travel 16 miles downstream.
First case for the upstream
Second case for the downstream
now compare the equations
simplify the equation
8( u +4 ) = 16 (u -4)
8u +32 = 16u - 64
8u = 96
u = 12 mph is the speed of the boat in still water .
Hence proved
The speed of the stream = 4 mph.
Let us assume speed of the boat in still water = x mph.
Total speed upstream = (x-4) mph.
Total speed downstream = (x+4) mph.
We know, time, speed and distance relation.
Time = Distance / Speed.
Total time taken upstream = 8 / (x-4)
Total time taken downstream = 16/(x+4).
Time taken upstream = time taken downstream.
Therefore,
8 / (x-4) = 16/(x+4).
On cross multiplication, we get
16(x-4) = 8(x+4).
16x - 64 = 8x +32.
Adding 64 on both sides, we get
16x - 64+64 = 8x +32+64
16x = 8x + 96.
Subtracting 8x from both sides, we get
16x-8x = 8x-8x + 96.
8x = 96.
Dividing both sides by 8, we get
x = 12.
The conclusion that can be drawn from the graph data is: "The top three most-populous cities shown on the graph are US cities."
The graph provides population data for several North American cities, and based on the information provided, it is evident that New York, Los Angeles, and Washington are the top three most-populous cities. New York's population is above 8 million, Los Angeles is below 4 million, and Washington is below 1 million. While Mexico City has a population of 9 million, it is the only Mexican city mentioned, and the graph doesn't provide data for other Mexican cities.
Therefore, we can't conclude that Mexican cities, in general, have larger populations than US cities or that the third most-populous city is in Mexico. Additionally, the graph doesn't specify whether Vancouver or Guadalajara is more populous, so we can't make conclusions about their relative populations.
However, it is clear from the data that New York City's population is more than double that of Los Angeles, which further supports the conclusion about the top three most-populous cities being in the US.
Learn more about US Cities here:
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Answer and Step-by-step explanation:
✓ Answer:The population of New York City is more than double the population of Los Angeles.(by process of elimination)