In the question, it is already given that the total number of runners in the race is 60 and out of them 1/3 dropped out in the first half. In the second half 1/4 of the remaining runners dropped out.
Now
Total number of runners in the race = 60
Number of runners that dropped out in the first half = 1/3 * 60
= 20
Number of runners remaining = 60 - 20
= 40
Number of runners dropping out in the second half = 40 * 1/4
= 10
Then the number of runners that finished the race = 40 - 10
= 30
Then 30 runners completed the race.
Answer:
Step-by-step explanation:
y=2(x-8)(x+2)
The x intercepts occur when y=0, so when x=8 and -2
The vertex is where the equation is at a minimum/maximum in this case (x,y)=(3,-50)
The axis of symmetry occurs between the two roots, 8 and -2 which x=3
The y intercept is the value of y when x=0, in this case (0, -32)
Answer:
The answer i got when I put it into the calculation is 1,632. That is when I just pluged the answer into my graphing calculator.
Step-by-step explanation:
Answer:
74/15
Step-by-step explanation:
x - 3 = ![\frac{7}{10}](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B10%7D)
to remove fractions multiply each side of equation by 40
3/4x(40) - 3 = 7/10(40)
120/4x - 120 = 280/10
simplify:
30x - 120 = 28
add 120 to each side to get:
30x = 148
x = 148/30 or 74/15 simplified
Answer:
1/2
Step-by-step explanation:
Hope this helps:)