Chapter 10 Review:Patterns and Expressions

Question #1What is the expression for a number multiplied by 8

and increased by 4?

Answer8x + 4

Question #2The mass of a can, c, is 150 g and the mass of a marble, m, is 15 g. What is

the total mass of 2c + 5m?

Answer:2(150) +5(15)=300 + 75= 375g

Question #3:A soccer team wants new uniforms.

These will cost $200 for the design plus $100 per uniform. What expression represents the total cost of the new

uniforms if n represents the number of players getting new uniforms?

Answer:200 + 100n

Question #4:Fill in the blank.

1200, 800, ____________________, 0

Answer:400

Question #5:Write an expression that

represents the perimeter of a square with each side having a

length of n.

Answer:n + n +n + n so 4n

Question #6:How do you get to the

next term in the following pattern?91, 85, 79, 73, 67, ...

Answer: 91-6=85-6=79-6=73-

6=67...Subtract 6 to get the

next term.

Question #7: Find the next three terms in the pattern.91, 85, 79, 73, 67, ...

Answer:67-6= 61-6= 55-6= 49

Question #8:Write an expression for

double the height of a tree.

Answer:2t when t= tree height

Question #9:For the following statement,

write an expression.Jeans sell for $3 off the

regular price.

Answer:r – 3 when r= regular

price

Question #10:Which linear relation

describes the ordered pair pattern (7, 8), (8, 9), (9,

10), (10, 11), ...?

Answer:y = x + 1

Ex- 8= 7 +19= 8 +1...

Question #11:Which expression

represents “a number decreased by 12”?

Answer:n – 12

Question #11:The expression 2w + t is used to determine the number of points a

minor hockey team earns in a season. In this expression, w represents the number of wins and t represents the number of ties. Calculate the total

number of points for a team with 14 wins and 8 ties.

Answers:2(14) + 8= 36

Question #12:Which linear relation does this table of values represent?x y1 62 43 24 0

Answer:y = 8 – 2x

Question #13:Which linear relation goes with this table of values?x y2 33 44 55 6

Answer: y = x + 1

Question #14:What is the relationship between x

and y in the following ordered pairs: (2, 4), (3, 6), (4, 8), (5, 10)?

Answer: (x, 2x)y = 2x

Question #15:Create a table of values for y = 2x.x y12345

Answer:x y1 22 43 64 85 10

Question #16: Number

of Packages, p Number of Golf Balls, g

1 32 63 9

Write an equation to describe the relationship between golf balls, g, and packages, p.

Answer:g = 3p or p= g/3.

Question #17:How would you find the next term in the pattern 4, 11, 18, 25, 32, ... ?a. add 7 to the last termb. multiply the last term by 1.28c. divide the last term by 8d. subtract 7 from the last term

Answer:A: Add 7 to the last term.

4 +7= 11+ 7= 18 +7 =25 +7 = 32

Question #18:If the starting value of n is 1, what are the first four

numbers in the pattern 3n + 5?

Answer:3(1) +5 = 8

3(2) +5 = 113(3) + 5= 143(4) + 5 = 17

Question #19:This table shows the number of chair legs in relation to the number of chairs. What expression represents the number of chair legs?

Number of Chairs, c Number of Chair Legs, l1 42 83 124 16

Answer:

4c= l because 4(1)= 4 and 4(2) = 8 and 4(3)= 12 and 4(4)= 16

Answer:

What do you call a pattern formed by two sets of numbers?a. an expressionb. a relationship

c. a table of valuesd. a variable

Question #20: B- a relationship