Algebra
2x + 5x =
5x
What is the sample space of selecting a letter from the word SPACE?
{S,P,A,C,E}
What is 1.5% as a fraction? (Simplified)
3/200
Complete the following equivalent ratio:
20:12 = ?:3
5
Kendall had $36.90 to spend at the toy store. She bought 4 toy cars that cost $1.60 each and a race track that cost $5.30. How much money does Kendall have left to buy more toys?
$25.20
Evaluate the following expression given that a=6, b=4, and c=7:
3c+5a-ab
27
A bag contains 3 red, 4 blue, and 5 yellow balls. Find the probability of choosing at random a red ball.
1/4
What is 12/25 as a percentage?
48%
The ratio of cows to sheep on a farm is 3:8. If there are 240 cows on the farm, how many sheep are there?
640
Larry can buy daffodil bulbs in packages of 3 for $10.80 or in packages of 2 for $8.40. How much money does he save by buying 24 bulbs at the better price?
$14.40
Expand the bracket:
-7(3x-2)
-21x+14
What is the probability of the complement of rolling a 5 on 1 dice?
5/6
A $45 shirt is discounted by 40%. What is the sale price of the shirt?
$27
The ratio of length to width of a rectangle is 6:5. If the perimeter is 66cm, how many centimeters is the width of the rectangle?
30cm
Dave bought stamps at the post office. Some of the stamps had a snowflake design, some had a truck design, and some had a rose design. Dave bought 20 snowflake stamps. He bought 6 more truck stamps than snowflake stamps, and 12 fewer rose stamps than truck stamps. How many stamps did Dave buy in all?
60
Solve:
c + 2=-14 - c
-8
If he played 250 games, how many is he expected to win?
140
A nature reserve has an area of 57,000km^2. Its area is increased by 35%. What is its new area?
76,950km^2
Simplify the ratio:
3/5 : 2/6
9:5
Emma planted sunflowers in the community garden. During her last visit to the garden, the plants were 80 inches tall. Today they are 92 inches tall. What is the percent of increase in the height of the sunflowers?
15%
Given that:
a=4(5+6b)+2(1-12b)
What will the value of a always equal?
22
If a person guesses all the answers on a 10-question true or false test, what is the probability that they will get them all right? (As a fraction)
1/1024
Michelle paid $153 after receiving a discount of 15% on a new pair of headphones. How much did the headphones cost before the discount?
$180
A sprinter is running at 10m/sec.
What is their speed in km/hr?
36km/hr
The sum of two numbers is 361 and the difference between the two numbers is 173. What are the two numbers?
267 and 94