Ratios
Write the ratio 4/5 in TWO different ways
4 to 5
4:5
Evaluate the expression
72 - 32 x 4
13
Use properties of operations to determine whether the expressions are equivalent:
5 x 7h and 35h
Equivalent
Luis' bowling scores were 195, 194, 191, 190, 238, and 192. Which measure of center best describes Luis' bowling scores?
A:Mean B:Median C:Mode D:Range
B: Median
Write the prime factorization of 54
Hint: Use a factor tree
2 x 3 x 3 x 3 = 54
At the grocery store, Luis bought 10 bananas and 4 apples. What are the THREE different ways to write the ratio of apples and bananas?
4 to 10
4:10
4/10
Write an algebraic expression for the word expression
6 more then the difference of b and 5
6 + (b - 5)
Use properties of operations to determine whether the expressions are equivalent:
9x+0+10x and 19x + 1
Not Equivalent
The area of a triangle is 24ft2
label the height and base of the triangle
Height = 6ft
Base = 8ft
Is 5/6 <,>,=. 0.812
Choose one
>
Write TWO ratios that are equivalent to 6/8
12/16
18/24
Evaluate the expression for the given values of the variables
4 x (21 - 3h) for h = 5
24
Jasmine is buying beans. She bought r pounds of red beans that cost $3 per pound and b pounds of black beans that cost $2 per pound. The total amount of her purchase is given by the expression 3r + 2b. Choose the terms of the expression. Mark all that apply.
A: 2 B: 2b C: 3 D: 3r
B: 2b
D: 3r
A prism id filled with 25 cubes with 1/2 unit side lengths. What is the volume of the prism in cubic units?
3 1/8 cubic units
6/7 * 1/3 =
* means divided by
2 4/7
Honeybees produce 7 pounds of honey for every 1 pound of beeswax they produce. Use equivalent ratios to find how many pounds of honey are produced when 25 pounds of beeswax are produced.
7/1 = 175/25
175 pounds of honey
When Debbie baby-sits, she charges $5 to go to the house plus $8 for every hour she is there. The expression 5 + 8h gives the amount in dollars she charges. How much will she charge to baby-sit for 5 hours?
$45
Simplify the expressions (6 + 2)2 - 4 x 3 using the order of operations.
52
Operation:
(6 + 2)2 - 4 x 3
(8)2 - 4 x 3
64 - 4 x 3
64 -12
52
Five friends have 8,6,5,2 and 4 baseball cards to divide equally among themselves.
Each friend will get how many cards?
5
Each friend will get 5 cards
Roger and Mary have an online account for buying movies. Roger's account balance is -$25 and Mary's is -$10. Express each account balance as a debt and explain whose debt is greater.
Roger's debt is $25 and Mary's debt is $10.
Roger's debt is greater than Mary's because 25 is farther away from 0.
Charlie saves $2 for every $9 he earns. Melody saves $4 for every $12 she earns. Is Charlie's ratio of money saved to money earned equivalent to Melody's ratio of money saved to money earned? Explain.
No
2/9 = 4/18
and
4/18 in NOT equivalent to 4/12
Use properties of operations to write an equivalent expression by combining like terms
5(2h+3)+3h
13h + 15
Choose the word that makes the sentence true.
Paulo wrote the expressions 3 x (d + 5) in his notebook. He uses the
Commutative Associative Distributive
Property to write the equivalent expression 3d + 15
Distributive
The numbers of emails Megan received each hour are 9, 10, 9, 8, 7, and 2. The mean of the data value is 7.5 and the median is 8.5. Which measure of center better describes the data, the mean or the median? Use words and numbers to support your answer.
The median
The mean is less than 4 of the 6 data values. The median is close in value to most of the data values.
A one-celled organism measures 32 millimeters in length in a photograph. If the photo has been enlarged by a factor of 100, what is the actual length of the organism?
0.32mm
32*100 = 0.32
* means divide