Show:
Solving Equations
Writing Equations
Geometric Formulas
Solving Inequalities
Random
100
Solve the equation: y - 31=11
y = 42
100
The sum of 3 times a number and 6 is 12.
3x + 6 = 12
100
What is the formula for perimeter of a rectangle?
P = 2l + 2w
100
Graph the inequality: x ≤ -9
My interpretation
100
Solve the equation: y/(-7) = 23
y = -161
200
-5 = w/11
w = -55
200
4 less than 2 times a number is 20.
2x - 4 = 20
200
What is the formula for area of a triangle?
A = 0.5bh
200
Solve and graph the inequality: h - 12 > 13
h > 25; Check graph
200
Solve the equation: y/9 + 6 = -2
y = -72
300
2x - 5 = 13
x = 9
300
Your class spends $26 on supplies for fruit baskets. How many baskets must your class sell at $7 each to make a profit of $100?
7x + 26 = 100
300
What is the area of a triangle whose base is 8 in. and height is 7 in.?
A = 28 square inches
300
Solve and graph the inequality: 32 < 16y
2 < y or y > 2; Check graph
300
A small college has 1,250 students. There are 30 more women than men. How many women attend the college?
640
400
-82 = 53 - 5n
n = 27
400
Ralph is putting pictures in a scrap book. He puts four pictures on each page and has 3 pictures left over. If he starts with 55 pictures, write an equation to find how many pages have 4 pictures on them.
4p + 3 = 55
400
What is the length of a rectangle with a width of 12 cm, and an area of 72 square cm?
l = 6 cm
400
-5x ≥ 40
x ≤ -8 ; check graph
400
WRITE AND SOLVE AN EQUATION: A book store offers three books in a set for $21.75. Each book costs the same amount. How much does each book cost?
3n = 21.75 ; n = $7.25
500
-33 = -15x - 12
x = 1.4
500
Last year Marguerite had 12 elm trees in her yard. This year she has 17 elm trees. Write an equation to find how many elm trees she planted this year.
12 + t = 17
500
Find the perimeter of a square whose area is 25 square miles.
p = 20 miles
500
Solve and graph the inequality: -11 ≥ m/5
-55 ≥ m or m ≤ -55; Check graph
500
WRITE AND SOLVE AN INEQUALITY. You and your friend are having lunch together. You can spend no more than $30 on both meals. The total cost of your friend's meal is $14.78. Determine how much you can spend on your meal.
14.78 + M ≤ 30 ; No more than $15.22