MATH SAT - Unit 8

If  $\frac{m-n}{n}=\frac{4}{9}$  what is the value of  $\frac{n}{m}$  ?

•  $\frac{9}{13}$  

•  $\frac{7}{4}$  

•  $\frac{9}{5}$  

•  $\frac{13}{7}$  

If  $\frac{p+4}{p-4}=13$  what is the value of  $p$  ?

•  $\frac{2}{3}$ 

•  $\frac{10}{13}$  

•  $\frac{28}{9}$  

•  $\frac{14}{3}$  

If  $4x+7=12$  what is the value of  $8x+3$  ?

•  $9$ 

•  $11$  

•  $13$  

•  $15$  

If  $\frac{6}{x}=\frac{4}{x-9}$  what is the value of  $\frac{x}{18}$  ?

•  $3$ 

•  $2$  

•  $\frac{1}{2}$  

•  $\frac{3}{2}$  

If  $3j-\left(k+5\right)=16-4k$  what is the value of  $j+k$  ?

•  $8$ 

•  $7$  

•  $5$  

•  $4$  

When the number  $k$  is multiplied by  $5$ , the result is the same as when  $5$  is added to  $k$  . What is the value of  $k$  ?

•  $\frac{4}{5}$  

•  $1$  

•  $\frac{5}{4}$  

•  $\frac{3}{2}$  

 $\frac{8r+7}{4s}=11$  
If $\frac{1}{2}r+1=s+1$  , what is the value of  $r+s$  for the equation above?

•  $\frac{1}{2}$  

•  $\frac{3}{4}$  

•  $1$  

•  $\frac{3}{2}$  

During the investigation of an archeological dig, a femur bone was found and used to estimate the height of the person it came from using the formula  $h=61.4\ +2.3F$  where  $F$  centimeters in length. Using this formula, the height of the person was estimated to be 5 feet 8 inches. The length of the femur, in centimeters, was closest to which of the following lengths? [Note: 1 inch = 2.54 centimeters]

• 37.3

• 48.4

• 51.0

• 56.3

Last month, Sara, Ryan, and Taylor received a total of 882 emails. If Sara received 25% more emails than the sum of the number of emails received by Ryan and Taylor, how many emails did Sara receive?

• 448

• 486

• 490

• 504

At City High School, the sophomore class has 60 more students than the freshman class. The junior class has 50 fewer students than twice the students in the freshman class. The senior class is three times as large as the freshman class. If there are a total of 1,424 students at City High School, how many students are in the freshman class?

• 202

• 205

• 235

• 236