IM 6th Grade Unit 6 Review

Select all the expressions that are equal to 3⁴?

• 81

• 3 x 3 x 3 x 3

• 3 x 4

• 27 x 3

• 9 x 9

Select all the equations where y = 6 is a solution.

• 6y = 36

• $\frac{18}{y}=\ 3$

• $\frac{1}{6}y+10=11$

• $y\ =\ 3^2$

• 2 ( y + 3) = 15

Select all the expressions that are equivalent to 24x- 12y.

• 12 (12x - y)

• 12 (2x - y)

• 12 ( 2x + y)

• 2 (22x - 10y)

• 2 (12x - 6y)

 $6\left(\frac{1}{t}\right)^2$  when t=2

• 3

• 1/4

• 6/4

• 6

 $6\left(\frac{1}{t}\right)^2$  when t=4

• 3/8

• 6/4

• 1/16

• 24

 $6\left(\frac{1}{t}\right)^2$  when t=10

• 3/10

• 3/50

• 3/5

• 100

3/10 of the students in band play brass.

How many students play brass if there are 100 students in band?

• 70

• 30

• 3

• 7

3/10 of the students in band play brass.

How many students play brass if there are 50 students in band?

• 35

• 15

• 6

• 14

3/10 of the students in band play brass.

If there are b students in band, write an expression for the  number of sixth graders in brass in terms of b.

• $\frac{3}{10}b\ =\ x$

• $b\ \div\frac{3}{10}=x$

• $\frac{3}{10}b$

• $b\ \div\frac{3}{10}$

3/10 of the students in band play brass.

How many students are in band if 27 play brass?

• 270

• 90

• 8

• 27