Well, if Tina can make 3 pies in one hour, she have to do 6 pies and she have already 2 so she can have as many pies as Bella, so the answer is 2 hours
Answer:
The answer to the question is
Shawn has to wait for 3 minutes for Jason to meet him at 2 miles away from the station
Step-by-step explanation:
To solve the question, we note the variables
Bike speed = 20 mph
Start point of Jason = 1 mile away from the station
Starting point of Shawn = 2 mile away from the station
Total miles away from station = y
Direction of biking = away from the station
Therefore if they both start biking at the same time, Shawn is ahead of Jason
Riding speed of Shawn = Riding speed of Jason = 20 mph
That is Shawn has to wait for 1/20 hr or 3 minutes for Jason to meet him at 2 miles away from the station
1. Answer=66cards
Lets use the variable 'x' to represent the number of baseball cards in Keith's collection that he started with. The following equation can be made.
(x+6)/2=36
multiply both sides by 2
x+6=72
subtract 6 from both sides
x=66 cards
2. Answer=$12
Lets use the variable 'a' to represent Sara's allowance. The following equation can be made:
(a/2)+7=13
subtract 7 from both sides
a/2=6
multiply both sides by 2
a=$12
Answer: mean = 64.95
Step-by-step explanation:
According to the Empirical rule , 95% of the population lies with 2 standard deviations from the mean when data is normally distributed.
Given: 95% of all marigold flowers have a height between 10.9 cm and 119.0 cm.
If height is normally distributed , then
Mean - 2 standard deviation = 10.9 (i)
Mean + 2 standard deviation = 119.0 (ii)
Add (i) and (ii), we get
2 Mean = 10.9+119.0
⇒ 2 Mean = 129.9
⇒ Mean = 64.95 [divide both sides by 2]
So, mean = 64.95
