Hi! As it so happens, as of last week, I have presented information from every one of my math topics last year. The timing worked out extremely well, so until we begin a new unit this week in Algebra, I decided to do a review on some of the math topics I have discussed this past summer. Since answers were already published to these topics on their original problems, I won’t be releasing the answers to these- it’s up to you to figure them out!
Multi-Step Equations
Multi-Step equations are the center of several topics that I discussed, whether it be inequalities, finding the value of a variable, or finding the value of a shaded area. This problem is simple: just find the value of x.
24x +96.8 = 2x – 4.2
The answer will be a decimal!
Inequalities
Like I mentioned earlier, inequalities are very similar to multi-step equations, just with a < or > as opposed to a =. Can you solve this one? Pay attention to the direction of the <>!
-64.5 + 7x > -3x + 129
Graphing Inequalities
Which would the line be facing? Would the bubble be filled in or empty?
98 > -32
Angles
What do you call two angles that have a sum of 180 degrees?
90 degrees?
Volume of a Cylinder
What is the formula for finding the volume of a cylinder?
Find the volume of a cylinder that has a radius of 54 cm and a height of 6 cm.
Percentage
Find the percent for this word problem using the percent equation.
John got back his test, and he isn’t sure whether he got a passing grade. A passing grade counts as a 70%. His teacher told him that he got 64 out of 96 problems correct. Did he pass his test?
Ratios and Rates
How can you tell whether a statement is a ratio or a rate?
Is the statement 72 songs : hour a ratio or a rate?
Thanks so much for following It All Adds Up this summer! Next Sunday I’ll have new information from our first Algebra unit. Have a great week!
Gabe
