Algebra
Solve for x
32 = 27
x = 3
A bookstore sells notebooks for $3 each. If Sarah buys 5 notebooks, how much does she spend in total?
$15
The numbers are:
3, 5, 7, 5, 2, 5, 8
What is the mode of these numbers?
5
Convert 0.4 to a fraction in simplest form.
2/5
A number plus three times that number equals 48.
What is the number?
12
The numbers are:
7, 3, 5, 9, 6
What is the mean (average) of these numbers?
6
x2+7x+12
3 and 4
Mariah is 10 years older then her brother John. If their combined age is 26. How old is Mariah? How old is John?
Mariah = 18
John = 8
A bag contains 6 red marbles and 9 blue marbles.
If one marble is chosen at random, what is the probability it is red?
40%
Factor using GCF:
6x2+9x
3x (2x + 3)
Fruit for a dessert costs $1.50 per pound. If 4 pounds of fruit are needed to make a dessert that serves 16 people, what is the cost of the fruit needed to make enough dessert to serve 24 people?
$9
A jacket’s price increases from $40 to $50.
What is the percent increase?
25%
Complete the square:
x2+6x+5
x = -1 or -5
When the number of friends who contribute equally to a gift decreases from 5 to 4, each friend must pay an additional $15. What is the total cost of the gift?
$300
In how many different ways can four students be seated in two chairs?
12