D=rtw=speed of the wind640=(180-w)t800=(180+w)t640=180t-wt800=180t+wtadd1440=360tt=1440/360t=4 hourssubstitute into either equation640=(180-w)*4divide both sides by 4160=180-w160-180=-w-20=-ww=20 miles per hour which is C.
Answer:
ayla had 45 cupcakes for the class jayla gave a number out to the cladd Jayla took 15 cupcakes back home what is the does n equal to
Answer:
Where's the graph?
Step-by-step explanation:
need an better explanation on how to do this question
Answer:
Since this is a proportional relationship,
We know that the number which are proportional are a multiple of each other
the number which we can multiply one of the numbers to get the other number is the constant of proportionality
we could check for proportionality by using the following formula:
p1 / s1 = p2/s2 = p3/s3 = p4/s4 if they were equal, we can say that the relation is proportional
The value of any of the above values, p1/s1 , p2/s2 , p3/s3 , p4/s4 is the constant of proportionality
Therefore, the constant of proportionality = 20 / 5 = 4
Answer: 
Step-by-step explanation:
According to the properties of logarithms, we have
To rewrite : 
in the form of log(c).
Therefore,
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Hence, .
