Answer:
=12
hope that helped you:)
please make my answer brainiest as im trying get 4 brainiest answers
Answer:
![l=31+20(y-2007)](https://tex.z-dn.net/?f=l%3D31%2B20%28y-2007%29)
where
is the number of laptops, and
is the year.
in 2017: ![l=231](https://tex.z-dn.net/?f=l%3D231)
Step-by-step explanation:
I will define the variable
as the number of years that passed since 2007.
Since the school buys 20 lapts each year, after a number
of years, the school will have
more laptops.
and thus, since the school starts with 31 laptops, the equation to model this situation is
![l=31+20*x](https://tex.z-dn.net/?f=l%3D31%2B20%2Ax)
where
is the number of laptops.
since x is the number of years that have passed since 2007, it can be represented like this:
![x=y-2007](https://tex.z-dn.net/?f=x%3Dy-2007)
where
can be any year, so the equation to model the situation using the year:
![l=31+20(y-2007)](https://tex.z-dn.net/?f=l%3D31%2B20%28y-2007%29)
and this way we can find the number of laptos at the end of 2017:
![y=2017](https://tex.z-dn.net/?f=y%3D2017)
and
![l=31+20(y-2007)](https://tex.z-dn.net/?f=l%3D31%2B20%28y-2007%29)
![l=31+20(2017-2007)\\l=31+20(10)\\l=31+200\\l=231](https://tex.z-dn.net/?f=l%3D31%2B20%282017-2007%29%5C%5Cl%3D31%2B20%2810%29%5C%5Cl%3D31%2B200%5C%5Cl%3D231)
Answer:
-25/16
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-7-68)/(54-6)
m=-75/48
m=-25/16
$29.25 in 3 hours. explanation: if he makes $9.75 in 1 hour then 9.75 x 3 (hours) would equal $29.25
Answer:
exact Form:(0,),(1,3)
Equation Form: ( 0, )
x=1 y=3
Step-by-step explanation: