Systems of equations
y = 3x
70 = x + 2y
x =10
y = 30
substitution
Lorras soccer team has 3 goals already. She scores 2 goals per 5 minute interval.
How many goals does her team have in 40 minutes?
19 goals, because her team is amazing
84 x 816
820
solve for x
2(2x + 10) = 5(x - 2)
x = 30
which teachers go to smith
Kalo, Fay
x = 2y
70= 2x + 3y
y=10
x=20
this is substitution
Define what a function is
a specific type of relation where each input (x) has one output (y).
x's cannot cheat
105/ 105
1 or 100
solve for x
3(x+2)=x + 5
x = -1/2
who are btc alumni?
kalo, raul, caleb, lorra, tanisha, mia, rabia, helena, yasmin
solve for x and y
y + 3x = 5
-y + 7x = 15
x= 2
y = -1
elimination
create a equation
x y
0 -2
1 2
3 6
y=4x-2
4(x2)12 - y8/y2
4x24 -y6
5(x + 4) = 2x+33
x=4.3
where does lorra go to school and what is her major
College of the holy cross and economics
3x + -4y = 10
7x + 4y = 20
x= 3
y = -1/4
elimination
My dog had 50 puppies, we sold 2 of them per week. How many weeks did it take for us to sell all of them?
25 weeks
10p4/5p3
2p
4(x-2) = 12x -20
x=1.5
who played lacrosse
Suzie and Lorra
1/2x + 3y =22
6x + - 3y = 30
x = 8
y= 6
elimination
what does each variable stand for in y=mx+b
y is y coordinate
m is the slope or rise/run
x is x coordinate
b is y-intercept
6(5x2)50
6(550*x100)
-10x + 66 = 1x - 44
x = 2
who is from England
ben