Answer:
Stephanie
Step-by-step explanation:
To compare each runner's speed, we must convert them all to the same units.
Let's convert then all to feet per second.
1. Stephanie
Speed = 13 ft/s
2. Emily
3. Brooke
4. Katie
Stephanie is the fastest runner.
Step-by-step explanation:
1 for 0/5
2 for 1/5
4 for 2\5
4 for 3\5
4 for 4\5
12 for 5\5
1 for 6\5
1 for 7\5
1 for 8\5
I think the easiest way is to get a common denominator. So I will show you that way. (another way is to change it from fractions to decimals).
So at first we have:
2/5 5/8 57/100
(57/100 comes from 0.57, since it is in the hundredths place you put it over 100)
The Least Common Multiple between 5, 8, and 100 is 200
2/5 = 2x40 and 5x40 = 80/200
5/8 = 5x25 and 8x25 = 125/200
57/100 = 57x2 and 100x2 = 114/200
So the answer would be: Sunday, Wednesday, Monday
The mixed number have to become a improper fraction and then you have to subtract like this.
so 7 7/8 you have to multiply 7 times 8 and then add it by 7 .
You do the same thing with the other mixed number 3 times 4 plus 1
So the first one is 63/8 - 13/4 =
first the 4 in the 13/8 have to become 8 . so you do 4 times 2 = 8 and multiply the 13 by 2 = 26 .
so equal
63/8 - 26/8 = then you have to do 63 - 26 = 37 so is 37/8 and then simplify or divide .
when you divide you suppose to get 4 5/8
5 - 3lp + 4l ≤ -10
Subtract 5 from both sides.
-3lp + 4l ≤ -15
Divide both sides by -3.
|p + 4| ≤ 5
p + 4 ≤ -5 or p + 4 ≥ 5
Answer is option C. p + 4 ≥ 5 or p + 4 ≤ -5
