Finding the number of Percents
10 is what percent of 40?
25%
What is 50% of 80?
40
Combine like terms:
5y +2y+6x-2y-x
Use the distributive property to write an equivalent expression for:
4(3+y)
4y +12
Solve:
3.3 x 2
6.6
20 is what percent of 50?
40%
What is 20% of 50?
10
Write an expression for "8 less than the product of 6 and a number, n"
6n - 8
Create an equivalent expression:
2x+3x+4(x-2)
9x-8
4.3 x 5
21.5
13 is what percent of 20?
65%
What is 30% of 200?
60
evaluate p2 - 10 + 3p if p = 5
30
What number can be inserted to make the equation true?
18x +36y = __(3x+6y)
6
Find the value of 1.36 ÷ 0.08
17
9 students in a class take the bus to school. If this represents 45% of total class, how many students total are in the class?
20 total students
A school cafeteria makes 90 sandwiches for lunch, and 2% of them are pb&j. How many pb&j sandwiches will be made?
18
Greg bought 4 notebooks for $6.40. Use p to represent the cost of 1 notebook.
4p = 6.40
What is the value of p?
$ 1.60
Carlos buys 6 tickets for a concert so that he and his friends can all attend. The band is selling the tickets for $12 each. Let m represent the total amount of money Carlos will spend on the concert tickets. Write an equation.
m = (6x12)
The rope was 14.35 inches long. Megan cut the rope into 7 pieces of equal length. How long is each piece?
2.05 inches
A library shelf has 3 types of books:
- 21 mysteries
- 19 biographies
- 10 poetry
What percent of the books on the shelf are biographies?
38% are biographies
35% of the donuts a baker makes are chocolate donuts. On Tuesday, the baker made 200 total donuts. How many donuts are chocolate?
70 donuts are chocolate
Paul can play 16 songs on his guitar. He learned some more, and now he can play 23 songs. Write and equation to represent the number of songs, s, he learned.
Solve for s.
s = 7 songs learned
A soccer team plays 6 games. In each game, the team scores m goals in the first half and 3 goals in the second half. How many goals were scored in the first half for them to have 30 goals total?
Use the distributive property to solve:
6(m+3) = 30
m = 2
Maya is baking cookies for a fundraiser. She has 5.4 cups of flour, and the recipe she’s following requires 0.3 cups of flour for each batch. How many batches of cookies can Maya make with the 5.4 cups of flour she has?
18 batches of cookies