Based on the given fractions above which are 7/8 and 42/4, in order for us to know if they are both proportional is to do the cross multiplication. Let's say, we multiply 4 by 7 and we get 28. Divide 28 by 8 and the result is 3.5 and not 42. Therefore, we can say that these fractions are NOT proportional. Hope this helps.
Answer:
the probability that the member is neither a doctor not a lawyer is 60%
Step-by-step explanation:
Total: 60 members
Doctor: 15
Lawyer: 9
Lawyer + Doctor: 15 + 9 = 24
60 - 24 = 36 members are neither
36 / 60 = 0.6 x 100 = 60
Answer: I think the answer is $48
Step-by-step explanation: $0.24 * 200 = $48
B. The formula for function 2 is y = 2x + 4
Let the average speed at day time be x miles per hour
Therefore at night the average speed = (x + 10) miles per hour
Time = Distance / speed
Time at day - Time at night = 36 minutes.
36 minutes = 36/60 hour = 6/10 hour
Time at day = Distance / speed at day = 120 / x
Time at night = Distance / speed at night = 120 / (x + 10)
120/x - 120/(x + 10) = 6/10
1/x - 1/(x + 10) = 6/10* 1/120
1/x - 1/(x + 10) = 1/200
((x + 10) - x) / ((x)(x+10)) = 1/200
(x + 10 - x) / ((x)*(x+10)) = 1/200
10 / ((x)*(x + 10)) = 1/200
1 / ((x)*(x + 10)) = 1/2000
Therefore x (x + 10) = 2000
x and x +10 are 40 and 50. Because 40*50 = 2000
x = 40
Average speed in the day time = 40 miles per hour
