11/8/21 - 11/12/21 Math 7 Raider Prep Activity

The correct mixture of red paint to yellow paint to make orange paint is  $\frac{1}{2}$  cup of red to  $2\frac{1}{2}$  cups of yellow. How many cups of red paint are needed for 20 units of yellow paint?

• 8

• 4

• 2

• 1

Alex is making five cakes. One cake requires  $\frac{1}{4}$  of a cup of sugar. How much sugar will he need to make all five cakes?

•  $1\frac{1}{4}$  

• 5

• 6

•  $\frac{5}{20}$  

What is 901,000 written in scientific notation?

• $9.01\times10^{-5}$

• $9.01\times10^{-3}$

• $9.01\times10^3$

• $9.01\times10^5$

Which of the following sets of numbers is in order from least to greatest?

• $2.5\%,\ \frac{2}{5},\ 0.25$

• $\frac{2}{5},\ 0.25,\ 2.5\%$

• $2.5\%,\ 0.25,\ \frac{2}{5}$

• $\frac{2}{5},\ 2.5\%,\ 0.25$

Which of the following expressions is equivalent to  $10^{-2}$ ?

•  $\left(-10\right)\cdot\left(-10\right)$  

•  $\left(-\frac{1}{10}\right)\cdot\left(-\frac{1}{10}\right)$  

•  $10\cdot10$  
  

•  $\frac{1}{10}\cdot\frac{1}{10}$  
  

The area of a square rug is 324 ft.² as shown. What is the length of each side?

• 162 ft.

• 81 ft.

• 18 ft.

• 40.5 ft.

The average weight of a dolphin at birth is 22 pounds. What is the approximate weight, in kilograms, if 2 kilograms is about 4.4 pounds?

• 10 kg

• 44 kg

• 48.4 kg

• 96.8 kg

Jayda ordered from the menu pictured.

She bought two hamburgers, a hot dog, a large order of fries, and a small soda. How much change did she get from a $20?

• $8.50

• $5.05

• $11.50

• $14.95

Which statement is true?

• $\frac{3}{50}=0.06\$

• $30\%=\frac{3}{100}$

• $\frac{30}{1,000}=0.30$

• $60\%=\frac{3}{50}$

Sandy made 9 free-throws out of 12 free-throw attempts in a basketball game. What percentage of the free-throw attempts did Sandy make?

• 25%

• 33%

• 57%

• 75%