Equations
Formula Substitution
Word Problems
Rearrange Equations Formulas
Review Topics
100
Solve equation 6 = −3x − 6
What is x = -4
100

Find the circumference of a circle with a radius of 11.4 cm

What is 408 cm

100
Mark's Canoes rents canoes for $20 plus $35 per hour. You do not want to spend more than $150. How many hours can you afford to rent the canoe?
What is h < 3.714
100
Rearrange for Y ax + by = c
What is y = (c - ax) / b
100
Simplify 9/3 + 2(9 + 10) - 8 + 4 * 3
What is 45
200
Solve equation −12 = 3 − 2k − 3k
What is k = 3
200

A tennis ball is dropped from the top of a tall building. The distance it has fallen is given by the following formula D = 1/2gt^2, where D is the distance in meters and t is the time taken in seconds. The gravitational constant is 9.8 m/s^2. Find the total distance fallen in the first 3 seconds.

What is 44.1 meters

200
The product of 4 and a number increased by 10 is greater than -18.
What is x > -7
200
Rearrange for n S = 180(n - 2)
What is n = (S + 360)/180
200
Order of Operations 36 ÷ ((5 – 11) × 2) + 12 – 7
What is 2
300
Solve the equation −3(4r − 8) = −36
What is r = 5
300

When a car travels d kilometers in time t hours, the average speed for the journey is given by s = d/t km/h. Find the average speed of a car that travels 200 km in 2.5 hours.

What is 80 km/h

300
Amanda rented a bike from Shawna's Bikes. They charged her $2 per hour,plus a $10 fee. Amanda paid less than $27. What was the max number of hours she could rent the bike?
What is 8.5 hours
300
Rearrange for B, X = 2h(A + B)
What is B = (x - 2hA)/ 2h
300
Simplify 7x - 3(4x - 5) + 65
What is -5x + 50
400
Solve equation 12(2k + 11) = 12(2k + 12)
What is No Soltion
400

The potential difference V across an R ohm resistor is given by V = IR volts, where I is the current in amps flowing through the circuit. Find the potential difference across a 6 ohm resistor if the current in the circuit is 0.08 amps.

What is 

400
Four times a number increased by 9 is aleast -6 plus the product of 2 and a number
What is x >= -7.5 or -15/2
400
Rearrange for n, L = a + d(n - 1)
What is n = (L - a + d)/ d
400
Simplify −9(6m − 3) + 6(1 + 4m)
What is -30m + 33
500
Solve the multi step equation 10p + 9 − 11 − p = −2(2p + 4) − 3(2p − 2)
What is p = 0
500

The formula D = 3.56 *sqrt of h estimates the distance in kilometers to the horizon which is seen by a person with eye level h meters above the level of the sea. Find the distance to the horizon when a person's eye level is 10 meters above eye level.

What is 

500
The quotient of a number and 4 decreased by 2 is less than 10.
What is x < 48
500
Rearrange for T, V = (T - K)/ P
What is T = VP + K
500
Simplify −3(10b + 10) + 5(b + 2); if b = -1
What is 5
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