Answer:
Shane had $240 at the beginning of his trip.
Step-by-step explanation:
Shane returned from a trip to Las Vegas with $420 and this is 75% more of at the beginning.
Let us assume the money he carried at the beginning of the trip was $x
At present he is having 75% more means total money he has = x+75% of x
This total amount is equal to $420
Therefore x + .75x = 420
x(1 +.75) =420
1.75 x = 420
Now by dividing both sides by 1.75
x = 420÷1.75
= $240
Therefore the amount he carried in the beginning of the trip is $240.
Answer:
x = -1
Step-by-step explanation:
8 = 2^(x + 4)
Rewriting 8 as 2^3
2^3 = 2^(x + 4)
Since the bases are the same, the exponents must be the same
3 = x+4
Subtract 4 from each side
3-4 =x+4-4
-1 =x
Answer:
3
Step-by-step explanation:
it is the correct answer
Answer: Option C
Step-by-step explanation:
In group(1), the risk is= 5/2000 x 100
= 0.25
In group(2), the risk is= 5/1000 x 100
= 0.5
The sample relative risk is= 0.25/0.5
= 0.5
So, option C is correct.