Step 1- Set up the equation.
Step 2- Divide the first digit.
Step 3- Divide the first two digits.
Step 4- Enter the first digit of the quotient.
answer:
-1
work:
y = mx+ b
so we can tell that the Y intercept is 1, so we can plug that in. ( + b is the y-intercept)
y = mx + 1
plug in some values to find the slope.
(-1, 2)
2 = -m + 1
- 1 - 1
1 = -1m
/-1 /-1
-1 = m
the slope is -1.
i hope this helps! :D
(-2x + 10y)(4x - 6y) =
-2x(4x - 6y) + 10y(4x - 6y) =
-8x^2 + 12xy + 40xy - 60y^2 =
-8x^2 + 52xy - 60y^2 <==
X² -64=0
+64
x²=64
√x=√64
x=8
She would be able to make 12 piles 12x4=48 50-48=2 2 tiles left over