Lesson 13 Practice Problems Review

Lesson 13 Practice Problems Review

Problem #1 pg. 143 in Workbook part 2

Have your workbook out and ready to follow along as we go through the problems together.

Problem #1-Start filling out the table. Next question will ask for them!

Open Ended

Fill in the 4 blanks. Use commas to separate your answers.

Multiple Choice

Is there a proportional relationship between a measurement in yards and a measurement in miles for the same distance?

Fill in the Blanks

Check your work!

Problem #2 pg. 143

Be ready to determine which equation represent a proportional relationship.

Multiple Choice

Is it a proportional relationship? The remaining length (L) of 120-inch rope after x inches have been cut off: 

 $120-x=L$  

Multiple Choice

Is it a proportional relationship? The total cost (t) after 8% sales tax is added to an item's price (p):  $1.08p=t$  

Multiple Choice

Is it a proportional relationship? The number of marbles each sister gets (x) when m marbles are shared equally among four sisters:  $x=\frac{m}{4}$  

Can write the equation 2 different ways

 $x=\frac{m}{4}$  or  $x=\frac{1}{4}m$  
Looking at the 2nd equation, it is multiplication
Dividing by 4 is the same as multiplying by  $\frac{1}{4}$ 

  $\div4\ =\ \times\frac{1}{4}$  

Multiple Choice

Is it a proportional relationship? The volume (V) of a rectangular prism whose height is 12 cm and base is a square with side lengths s cm:  $V=12s^2$  

Problem #3- pg. 144

Be ready to use an equation to solve the missing boxes in a table.

Multiple Choice

Use the equation $y=\frac{5}{2}x\ or\ y=2.5x$ to solve if  $x=2$  

• 2.5

• 4

• 5

• 5.5

Multiple Choice

Use the equation $y=\frac{5}{2}x\ or\ y=2.5x$ to solve if  $x=3$  

• 7.5

• 15

• 6

• 8.5

Multiple Choice

Use the equation $y=3.2x+5\$ to solve if  $x=1$  

• 9.5

• 4.2

• 5.4

• 8.2

Multiple Choice

Use the equation $y=3.2x+5\$ to solve if  $x=4$  

• 15.4

• 8.2

• 17.8

• 13.8

Check your Work on pg. 144

#3 part a

Check your Work on pg. 144

#3 part b

Problem #4 pg. 144

• To transmit information on the internet, large files are broken into packets of smaller sizes.

• Each packet has 1,500 bytes of information. An equation relating packets to bytes of information is given by b=1,500p where p represents the number of packets and b represents the number of bytes of information.

  
  

  
  

Multiple Choice

How many packets would be needed to transmit 30,000 bytes of information?

• 10

• 15

• 20

• 25

 $b=1,500p$  

• p represents the number of packets

• b represents the number of bytes of information.

• If we know we need to transmit 30,000 bytes what letter does that represent?

•  $30,000=1,500p\$  What does p have to be? 

Multiple Choice

How much information could be transmitted in 30,000 packets?

• 45 million

• 40 million

• 35 million

• 30 million

 $b=1,500p$  

• p represents the number of packets

• b represents the number of bytes of information.

• If we know we have 30,000 packets... what letter does that represent?

•  $b=1,500\times30,000$  What does b have to be? 

Now what?

If you did not finish lesson 14 and the practice problems that is what you are working on.

You can also work on any MISSING or INCOMPELTE work!