Solving Equations/Inequalities
Write and solve an equation:
If you save $5 every month, how long will it take you to save $100?
What is 5m = 100? m = 20
Solve the equation
|r|=9
r=9 , r=-9
What is 48 cups?
12am = 4, Solve for a
a = (1/3)m
2x-5 ≤ 23
x ≤14
Solve the equation
|r-7|=9
r=16, r=-2
Who is faster?
Mrs. Frommert runs 4.5 mi/hour
Ms. L'Abbate runs 8 km/hour.
(1 km ≈ 0.62 miles)
Mrs. Frommerts runs about 7.26 km /hour
Ms. L'Abbate runs about 4.96 miles/hour
-3x + 2c = -3, Solve for x
x = (2c + 3)/3
Solve the equation
4|t+9|-5=19
t=-3 or t=-15
Which is a better buy?
$5.90 for 4 croissants or $9 for 6 croissants
$5.90 for 4 croissants is about $1.48 per croissant.
u = kx + yx, Solve for x
x = u/(k + y)
18 - 2(x + 3) = x
What is 4?
Solve the equation, if possible
|x-1|+5=2
no solution
Pal can eat 5 treats per day. There are about 92 treats per box. Each box costs $8.50. About how much do we spend on Pal's treats per year?
$8.50 / 92 = $0.09 per treat
$0.09 * 5 = $0.45 cost per day
0.45 * 365 = $164.25
-3a - 3 = -2n + 3p, Solve for a
a = (2n - 3p - 3)/3
Solve and graph
-14 > w+ 3 OR 3w ≥ -27
w < -17 or w ≥ -9
A square has sides of 8x - 3 and 6x + 5. What is the perimeter of the square?
What is 116 units?
Solve the equation, if possible
-10|14-r|-2=-7
r=13.5 or r=14.5
Pal can eat 5 treats per day. There are about 92 treats per box. Each box costs $8.50. How much would we save per year if she only ate 4 treats per day?
164 - 132 = about $32 per year
g = (x - c)/x, Solve for x
x = - c/(g - 1)