7th Grade Math Review

Proportional Relationships

Solving Equations

Word Problems

Circles

Percent

Positive and Negative Numbers

The ratio was 3 pages to 2 days

pages/days

 $\frac{3\ pages}{2\ days\ }=\frac{400\ pages}{x\ days}$  

You need to find the unit rate of each. You do y/x.

(1,5 ) = 5

(1 , 10) = 10

(2, 10) = 5

y = 5 x the unit rate is 5

y = X + 8 the unit rate is (x +8)

Which ones are equivalent?

The questions is just wanting to see if you can take the decimal and write it as a percent

move the decimal to the right twice to turn into percent. That is your answer

1.18 = 118%

Your first step to this problem is to find the Circumference of both circles

After you have found the circumference of both circles you subtract them to find the difference.