Tony : d = 108m.....so Tony walks 108 meters per minute
Mark :
(10,1100),(20,2200)
slope = (2200 - 1100) / (20 - 10) = 1100/10 = 110 meters per minute
So Tony's walk speed is 2 meters per minute slower then Tony's walk speed
Jason: 5/7
Sara: 4/5
Think of it this way: if the total track is a mile, and Jason runs 5/7 of it, he has run 5/7 of a mile. Then Sara runs 4/5 OF 5/7, with "of" meaning "times," so she runs 4/5 x 5/7, which gives you 20/35, which simplifies to 4/7. You can also think of Sara's distance as 80 percent of Jason's. If she runs "80 percent of the sevenths that Jason ran," that means she ran 4 out of his 5 sevenths.
Answer:
F(x) = 2/3x + 3
Step-by-step explanation:
I found this out by first starting off with the equation, f(x) = mx + b. (b is the y intercept, m is the slope.) The y intercept, where the line passes through the y axis, is 3. (f(x) = mx + 3) Now, look at rise over run, and see that the slope is 2/3, since for every one it goes over, it goes up 2/3. your final equation is f(x) = 2/3x + 3
Answer:
A) Case A we dont rally have a nrmal distribution in case C
(See step by step explanation)
Step-by-step explanation:
Normal Distribution curve is a function of mean and standard deviation with these values we can plot the curve. The mean usually denoted by μ will show the most frecuent value of the population ( or sample ) and the standard deviation is a measure of the spread of the values around the mean. If we assume that for hitting the axis we should understand that the two given values are the end of the curve, then we can evaluate how spread is each of the curve then:
case A 115 - 75 = 40
case B 72 - 48 = 24
case C We do not touch x -axis in this case so curve is open we can find distribution values (theoretically) from -∞ to +∞ we dont really have a normal distribution in this case.
case D 38 - 28 = 10
Then if we dismiss case C the biggest standard deviation will be case A.
Note: we do not need to calculate standard deviation we just need to look how width it is
Anytime you find an equality that is always true, it means that there are infinitely many solutions.
If you arrive at 12=12, it means that the equations are always equal.
