Expressions
Equations
Inequalities
Ch 4
Word Problems
100
Evaluate each using the values given
x - 2y ; use x = 2 and y = 4
x = -6
100
Solve
-2/3x = 6
X = -9
100
Write an inequality for the graph
x < 4
100
You roll a standard number cube. Find P(number less than 6)
5/6
100
Write an expression
3 times the quantity x minus 7
3(x-7)
200
Write as an algebraic expression
15 less than x
x - 15
200
Solve
3x + 7 = -2
x = -3
200
Solve
-5x > 25
x < -5
200
125 is what percent of 150?
83%
200
Suppose you are helping to prepare a large meal. You can peel 2 carrots per minute. You need 60 peeled carrots. How long will it take you to finish if you have already peeled 18 carrots?
21 min
2x + 18 = 60
300
Simplify
-2 (x-6)
-2x + 12
300
Solve
15 = -3 (2x-1)
x=-2
300
Solve
2(x-4) > -6
x > 1
300
You toss a coin and roll a number cube. Find P (heads and a number less than 3)
1/6
300
A canary's heart beats 200 times in 12 seconds. Use a proportion to find how many times its heart beats in 42 seconds.
700
400
Simplify
3 (2x -1) + 5
6x + 2
400
Solve
1 + x -2 -1 = 6x - 3x
x = -1
400
Solve
3x -1 < -7 or 4x + 1 > 9
b < -2 or b > 2
400
Solve
5/2 = 10/ x + 2
x = 2
400
School guidelines require that there must be at least 3 chaperones for every 18 going on a school trip. How many chaperones must there be for 74 students?
13
500
Simplify
-2x + 5 + 3x - 8 + x
2x - 3
500
Solve
-8x -5(x+4) = -85
x = 5
500
Solve
7 < 3 - 2x < 11
-4 < x < -2
500
A bird bath that is 4 ft tall casts a shadow that is 8 ft long. Find the height of an elephant that casts a 18 ft shadow.
x = 9
500
You are fencing a rectangular puppy kennel with 25 ft of fence. The side of the kennel against your house does not need a fence. This side is 9 ft long. Find the dimensions of the kennel.
8 ft by 9 ft
x + 9 + x = 25