Equations review

A group of 3 friends each have video games at their home.  Then each friend buys 5 more video games.  Now the three friends have a total of 30 video games.  How many video games did each friend start with?

• 3(x+5) = 30
• x(3+5) = 30
• 5(x+3) = 30
• 30(3+5) = x

You mailed 20 identical Christmas cards weighing more than 1 ounce each.  Mailing each card costs $.44 for the first ounce, plus .17 for each additional ounce.  The postage for all cards totalled $15.60.

• 20(.17w) = 15.60
• 20(.44w) = 15.60
• 20(.17w + .44) = 15.60
• 20(.44w + .17) = 15.60

You decide to rent a bike for $25 plus $3.00 per hour.  If you spent a total of $40.00, how many hours did you rent the bike?

• 1 hour
• 4 hours
• 2 hours
• 5 hours

You want to buy a new pair of shoes that costs $95.00.  You have already saved up $27.00 and you plan to save $4 per week.  How many weeks until you have enough money to buy the shoes?

• 68 weeks
• 17 weeks
• 91 weeks
• 64 weeks

For a field trip, 13 students rode in cars and the rest filled seven buses.  How many students were in each bus if 251 students were on the trip?

• 231
• 5
• 65
• 34

3c + 5 = 23

• c = 3

• c = 6

• c = 7

• c = 18

Solve for x.

• 55
• 60
• 15
• 35

Solve for x.

• 55
• 60
• 15
• 35

Solve for v.

• 60
• -3
• 15
• 3

5h - 6 - h + 10 = 12

• h= 12

• h= 2

• h= 0

• h= 5