Level 267
Level 269

#### 14 words 0 ignored

Ready to learn
Ready to review

## Ignore words

Check the boxes below to ignore/unignore words, then click save at the bottom. Ignored words will never appear in any learning session.

**Ignore?**

xy = 30

The product of two numbers (x & y) is 30.

2x = (1/4)y + 6

Twice some number (x) is 6 more than a quarter of another number (y). Use brackets for any fractions.

d = 800 - 55t

A helicopter is 800 m above ground and is descending at 55 m/min. Write an equation for the helicopter's distance above ground (d) in terms of time (t).

d = 400t

An airplane is taking off from the ground and is ascending at 400 m/min. Write an equation for the airplane's distance above ground (d) in terms of time (t).

x = 0.4 + 7.5t

Jane runs a race at 10 km/h. Her position (x) in km, as a function of time (t) in hr, is represented as

x + y = 120

The sum of two numbers (x & y) is 120.

W = 800 - 30t

A tank holds 800 L of water. If it drains at 30 L/min, write an equation for the amount of water in the tank (W) in terms of time (t).

(1/3)x = (1/2)y - 10

One-third of some number (x) is ten less than half another number (y). Use brackets for any fractions.

L + C + M = 100

Larry (L), Curly (C), and Moe (M) have a combined age of 100 years.

W = 50 + 10t

A 500 L tank contains 50 L of water. If water is added at a rate of 10 L/min, write an equation for the amount of water in the tank (W) in terms of time (t).

Spock

Scissors cuts paper, paper covers rock, rock crushes lizard, lizard poisons ______________________, Spock smashes scissors, scissors decapitates lizard, lizard eats paper, paper disproves Spock, Spock vaporizes rock,

x - y = z

The difference between two numbers (x & y) is z.

2d + 4s = 10.5

The total cost of two drinks and four snacks is $10.50 (i.e. 10.5 dollars). The price of one drink is "d" and the price of one snack is "s".

W = 800 - 0.15t

A tank holds 800 L of water. If it drains at 150 mL/min, write an equation for the amount of water in the tank (W) in L, in terms of time (t).