Solve for X
2X = 16
X = 4
A number plus two times that number equals 18.
What is the number?
6
The numbers are: 2, 4, 6.
What is the mean (average) of these numbers?
4
Convert 0.6 to a fraction in simplest form.
3/5
Mariah is 4 years older than her brother John. Their combined age is 14.
How old is Mariah? How old is John?
A bag contains 2 red marbles and 5 blue marbles.
If one marble is chosen at random, what is the probability it is red?
29%
Factor
x2 + 6x + 8
x = 4 and 2
Fruit costs $1 per pound. If 2 pounds of fruit are needed to serve 4 people, what is the cost of the fruit needed to serve 8 people?
$4
A toy’s price increases from $10 to $12.
What is the percent increase?
20%
Solve for x:
2x+ 5= 13
X = 4
When the number of friends who contribute equally to a gift decreases from 3 to 2, each friend must pay an additional $10. What is the total cost of the gift?
$60
In how many different ways can two students be seated in two chairs?
2