Answer:
8 4/7
Step-by-step explanation:
Use a proportion.
Let the unknown number of laps for 30 minutes be x.
7 minutes is to 2 laps as 30 minutes is to x laps
7/2 = 30/x
Cross multiply.
7x = 2 * 30
7x = 60
x = 60/7
x = 8 4/7
Answer: 8 4/7
The strategy to graph a line actually doesn't depend on the form the equation is presented: it can be the standard form, the slope intercept form, or any other way to write it.
The key point is that you can draw a line if you know two of its points. In fact, all you have to do is draw and connect them.
To sample two points from the equation, just pick any two values for x, and compute the correspondent value for y.
For example, given the line y=3x-7, we can sample x=0 and x=1 (again, this is a totally arbitrary choice), and compute
![x=0 \mapsto y=3\cdot 0-7=-7](https://tex.z-dn.net/?f=x%3D0%20%5Cmapsto%20y%3D3%5Ccdot%200-7%3D-7)
![x=1 \mapsto y=3\cdot 1-7=-4](https://tex.z-dn.net/?f=x%3D1%20%5Cmapsto%20y%3D3%5Ccdot%201-7%3D-4)
So, the line passes through the points (0,-7) and (1,-4). Draw these two points and connect them, and you'll have the line.
Answer: B.)
Step-by-step explanation:
Answer:
Part 6)
case a)
case b)
Part 7)
case a)
case b) ![P(green\ and\ red)=\frac{1}{20}=0.05=5\%](https://tex.z-dn.net/?f=P%28green%5C%20and%5C%20red%29%3D%5Cfrac%7B1%7D%7B20%7D%3D0.05%3D5%5C%25)
Step-by-step explanation:
we know that
The probability of an event is the ratio of the size of the event space to the size of the sample space.
The size of the sample space is the total number of possible outcomes
The event space is the number of outcomes in the event you are interested in.
so
Let
x------> size of the event space
y-----> size of the sample space
so
Part 6)
case a) P(odd)
In this problem we have
substitute
case b) P (less than 3)
In this problem we have
substitute
Part 7)
case a) P(yellow)
In this problem we have
substitute
case b) P(green and red)
![P(green)=\frac{5}{20}](https://tex.z-dn.net/?f=P%28green%29%3D%5Cfrac%7B5%7D%7B20%7D)
![P(red)=\frac{4}{20}](https://tex.z-dn.net/?f=P%28red%29%3D%5Cfrac%7B4%7D%7B20%7D)
therefore
![P(green\ and\ red)=\frac{5}{20}*\frac{4}{20}=\frac{20}{400}=\frac{1}{20}=0.05=5\%](https://tex.z-dn.net/?f=P%28green%5C%20and%5C%20red%29%3D%5Cfrac%7B5%7D%7B20%7D%2A%5Cfrac%7B4%7D%7B20%7D%3D%5Cfrac%7B20%7D%7B400%7D%3D%5Cfrac%7B1%7D%7B20%7D%3D0.05%3D5%5C%25)
Answer:
Total for Likes Burritos: 70
Does not like burritos: 81
Total for does not like hamburgers: 95
Step-by-step explanation:
Did it all.