Answer:
15
Step-by-step explanation:
70÷14=5
5×3=15
So the ratio would be 70:15 which can be simplified to 14:3
Answer:
A
Step-by-step explanation:
If you graph the equation you get the graph in the image.
I thing x=7
Hope it help full
Answer:
a. The Venn diagram is explained in the attached word file.
0.61
b. Not independent
Step-by-step explanation:
a. The hypothetical 1000 table for given situation is
Adult(A) Not Adult (not A) Total
Travel outside (T) 610 170 780
Not Travel outside (not T) 110 110 220
Total 720 280 1000
P(Adult and travel outside)=P(A and T)=610/1000=0.61
b. Multiplication rule for independent events is
P(A and B)=P(A)*P(B)
P(A and T)=0.61
P(A)*P(T)=0.72*0.78=0.56
As P(A and T) is not equal to P(A)*P(T), so event "being an adult" and "travel outside" are not independent.
Answer:
B = $49 + $99m is a good equation; they don't actually ask for the number of months to be found, but I showed it anyway
Step-by-step explanation:
Let B be the total bill amount.
Let m be the number of months of service provided.
Then the bill total,
B, is $49 for install + $99 times the number of months of service.
B = $49 + $99 x m
*** <u>B = $49 + $99m</u>
Now, we know B is $544, so
544 = 49 + 99m
<u>-49</u> <u>-49</u>
495 = 99m
495/99 = 99m/99
5 = m
*** After <u>5 months</u>, the bill is $544