9514 1404 393
Answer:
D. 1/12
Step-by-step explanation:
Form the fraction and simplify.
(3/9)/4 = (1/3)/4 = 1/(3·4) = 1/12
<span>A freight train completes its journey of 150 miles 1 hour earlier if its original speed is increased by 5 miles/hour. What is the train’s original speed?
***
let x=original speed
x+5=increased speed
travel time=distance/speed
..
lcd:x(x+5)
150(x+5)-150x=x(x+5)
150x+750-150x=x^2+5x
x^2+5x-750=0
(x-25)(x+30)=0
x=25
What is the train’s original speed? 25 mph</span>
Answer:
Step-by-step explanation:
Given
---- 10 sided
--- 6 sided
Required
First, list out the sample space
--- total outcomes
The event that the outcome of both is greater than 4 is:
So, the probability is:
Answer: 75% off the original price.
Step-by-step explanation:Say an item is $100. 50% off $100 is of coarse $50.
Now 50% off that price is $25.
So the new price is now $25 which is 75% off.
