Lesson 2.3-2.4 HW check

Members of the band sold juice and popcorn at a college football game to raise money for an upcoming trip. The band raised $2,000. The amount raised is divided equally among the m members of the band.

Which equation represents the amount, A , each member receives?

• $A=\frac{m}{2,000}$

• $A=\frac{2,000}{m}$

• $A=2,000m$

• $A=2,000-m$

Tags

CCSS.HSA.CED.A.3

The standard deviation for a data set is 0. What can you conclude about the data?

• The standard deviation measures the variation of the data. If the standard deviation is 0, then there is no variation, so all the data is the same.

• Standard deviation is the same as mean

• Not enough information to answer the question

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Elena has $225 in her bank account. She takes out $20 each week for weeks. After w weeks she has d dollars left in her bank account.

Write an equation that represents the amount of money W left in her bank account after w weeks.

• $225-20w=d$

• $225+20w=d$

Tags

CCSS.HSF-BF.A.1A

The density of an object can be found by taking its mass and dividing by its volume.
What equation will represent the relationship between the three quantities (density, mass, and volume) in each situation. Let the density,D, be measured in grams/cubic centimeters (or g/cm3).

The mass is 125 grams and the volume is v cubic centimeters.

•  $D=500/400\ or\ D=5/4$  

•  $D=\frac{125}{v}$  

•  $80=\frac{m}{1.4}$  

•  $D=\frac{m}{v}$  

Tags

CCSS.HSA.CED.A.4

The density of an object can be found by taking its mass and dividing by its volume.
What equation will represent the relationship between the three quantities (density, mass, and volume) in each situation. Let the density,D, be measured in grams/cubic centimeters (or g/cm3).


The mass is  grams and the volume is  cubic centimeters.

•  $D=500/400\ or\ D=5/4$  

•  $D=\frac{125}{v}$  

•  $80=\frac{m}{1.4}$  

•  $D=\frac{m}{v}$  

Tags

CCSS.HSA.CED.A.4

An artist is selling children's crafts. Necklaces cost $2.25 each, and bracelets cost $1.50 per each. Select all the combinations of necklaces and bracelets that the artist could sell for exactly $12.00.

• 5 necklaces and 1 bracelet

• 2 necklaces and 5 bracelets

• 3 necklaces and 3 bracelets

• 4 necklaces and 2 bracelets

• No necklaces and 8 bracelets

Tags

CCSS.7.EE.B.3

Volunteer drivers are needed to bring 80 students to the championship baseball game. Drivers either have cars, which can seat 4 students, or vans, which can seat 6 students. The equation below describes the relationship between the number of cars, c, and number of vans, v, that can transport exactly 80 students.
Select all statements that are true about the situation. $4c+6v=80$  

• If 12 cars go, then 2 vans are needed.

• If 6 cars go and 11 vans go, there will be extra space.

• 10 cars and 8 vans isn’t enough to transport all the students.

• If 20 cars go, no vans are needed.

• 8 vans and 8 cars are numbers that meet the constraints in this situation.

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

The drama club is printing t-shirts for its members. The printing company charges a certain amount for each shirt plus a setup fee of $40. There are 21 students in the drama club.

If there are 21 students in the club and the t-shirt order costs a total of $187, how much does each t-shirt cost?

• 21

• 7

• 147

• 10

Tags

CCSS.3.OA.D.8

The speed of an object can be found by taking the distance it travels and dividing it by the time it takes to travel that distance.
An object travels 100 feet in 2.5 seconds. Let the speed, S, be measured in feet per second.
Write an equation to represent the relationship between the three quantities (speed, distance, and time).

•  $\frac{100}{2.5}=40$  

•  $2.5\cdot S=40$  

•  $S=2.5\cdot60$  

•  $2.5\cdot100=S$  

Tags

CCSS.HSA.CED.A.3

A donut shop made 12 dozen donuts to give to a school’s math club.

Which expression represents how many donuts each student would get if the donuts were equally distributed and there were x students in math club?

• $\frac{x}{12}$

• $\frac{12\cdot12}{x}$

• $\left(12\cdot12\right)x$

• $12\cdot12$

Tags

CCSS.HSA-SSE.A.1A