Answer:
19. 125/3 20.625/3
Step-by-step explanation:The chance is 1/6 spins it will land on w so 1/6 times 250, 5/6 that it will not land on w so 5/6 times 250, and then you just simplify.
Answer:
The average of students in the two classes who went on the field trip is
.
Step-by-step explanation:
Average = ![\frac{sum \: \: of \: \:observations }{no. \: \: of \: \:observations}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bsum%20%5C%3A%20%20%5C%3A%20of%20%5C%3A%20%20%5C%3Aobservations%20%7D%7Bno.%20%5C%3A%20%20%5C%3A%20of%20%5C%3A%20%20%5C%3Aobservations%7D%20)
Average of students in the two classes =
![\frac{ \frac{4}{5} + \frac{9}{10} }{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Cfrac%7B4%7D%7B5%7D%20%20%2B%20%20%5Cfrac%7B9%7D%7B10%7D%20%7D%7B2%7D%20)
![\frac{ \frac{8+9 }{ 10} }{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Cfrac%7B8%2B9%20%7D%7B%2010%7D%20%7D%7B2%7D%20)
![\frac{ \frac{17}{10} }{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Cfrac%7B17%7D%7B10%7D%20%7D%7B2%7D%20)
![\frac{17}{20}](https://tex.z-dn.net/?f=%20%5Cfrac%7B17%7D%7B20%7D%20)
Answer:
x=0,y=-3
Step-by-step explanation:
3x-5y=15 - equation(1)
x-4y=12 => x=12+4y -equation (2)
Replace equation (2) in equation (1)
3(12+4y)-5y=15
36+12y-5y=15
7y=15-36
7y= -21
y = -21/7
y=-3
If y=-3,then replace in equation (1) ; 3x -5(-3)=15
3x+15=15
3x=0
x=0
An equation for annealing soda-lime glass is y(t)=−14t+500 , where t is time in minutes and y is the temperature of the glass in ˚C.
To find the y intercept , we plug in 0 for t
y intercept is the value , where time is 0 minutes
so we plug in 0 for t and find out y(0)
y(t)=−14t+500
y(0)=−14(0)+500 = 500
When t=0 , the value of y = 500
So , y intercept is (0,500)
I think it might be 36. I’m not sure if this is the right equation but i just did: 76 - 40 and i got 36. So make sure i was (right??) i added 36 and 40 together and i got 76. djdkdks not sure if that was right