1
2x+5=15
x=5
In a bag with 3 red, 2 blue, and 5 green marbles, what is the probability of drawing a green marble?
5/10 or 1/2
Find the perimeter of a rectangle with a length of 6 units and a width of 3 units
18 units
how do you find the median of a set of numbers
To calculate the median, first arrange your data set in ascending order (from smallest to largest), then identify the middle value
A taxi charges a flat fee of $3 plus $2 per mile. If Jenny paid $15 for her taxi ride, how many miles did she travel?
Let x be the number of miles traveled.
Total cost = flat fee + (cost per mile × number of miles)
15 = 3 + 2x
12 = 2x
x = 6
What is the sum of the interior angles of a triangle
What is 180 degrees
Solve for x: x+7=12
x=5
How many sides does a hexagon have
6
What is the median of the data set: 1, 3, 5, 7, 9
5
A box contains 5 rows of pencils. Each row has 4 pencils. If Sarah adds 7 more pencils to the box, how many pencils are in the box now?
First, calculate the total number of pencils in the rows:
5 rows × 4 pencils per row = 20 pencils
Then, add the pencils Sarah added:
20 + 7 = 27
Answer: There are 27 pencils in the box now.
Find the area of a rectangle with a length of 8 units and a width of 5 units
What is 40 square units
Simplify the expression: 4(x+1)
4x+4
If f(x)=x+3, what is f (4)
7
Problem:
Lena is buying notebooks for school. Each notebook costs $3.50. If she buys 7 notebooks and pays with a $30 bill, how much change will she receive?
Total cost = $3.50 × 7 = $24.50
Change = $30 - $24.50 = $5.50
Answer: Lena will receive $5.50 in change.
You have a pizza that is cut into 8 slices. You eat 3 slices. What fraction of the pizza did you eat, and how many slices are left?
8-3=5
3/8
What is the probability of drawing a red card from a standard deck of 52 cards
1/2
what is the value of 3x when x=2
6
If g(x)=x−2, what is g (5)
3
Sarah scored 80 out of 100 on her math test. What percentage did she score?
Answer: Sarah scored 80%.
James has $20. He wants to buy 3 books, each costing $6. After buying the books, how much money will he have left?
Total cost of the books:
3 books × $6 per book = $18
Money left after buying books:
$20 - $18 = $2
Answer: James will have $2 left.
If you flip a coin, what is the probability of getting heads
1/2
Solve for x: 5x=20
x=4
how do you find the mean of a set of numbers
add up all the numbers in a data set and then divide the sum by the total number
Alex invested $1,200 in a savings account with an annual interest rate of 5%. How much interest will he earn in 2 years?
Simple Interest = Principal × Rate × Time
Interest = $1,200 × 0.05 × 2 = $120
Answer: Alex will earn $120 in interest.
A movie starts at 4:30 PM and lasts for 1 hour and 45 minutes. What time does the movie end?
Add 1 hour to 4:30 PM:
4:30 PM + 1 hour = 5:30 PM
Add 45 minutes:
5:30 PM + 45 minutes = 6:15 PM
Answer: The movie ends at 6:15 PM.