Chapter Test
Textbook
7 Math Nelson
Chapter
Chapter 2
Section
Chapter Test
Solutions 27 Videos a) Write the ratio of white squares to green squares.

b) What fraction of the squares are white?

c) What percent of the squares are green?

Q1

Determine three ratios that are equivalent to 5:9.

Q2

Calculate the missing term in each proportion.

\displaystyle \frac{2}{11}=\frac{\square }{55}

Q3a

Calculate the missing term in each proportion.

\displaystyle \frac{36}{42}=\frac{12}{\square }

Q3b

Calculate the missing term in each proportion.

\displaystyle \frac{9}{\square }=\frac{21}{28}

Q3c

Calculate the missing term in each proportion.

\displaystyle \frac{6}{9}=\frac{\square }{15}

Q3d

The height of a building in a scale drawing is 9 cm. The scale is 1:600. Explain how you would use the scale to find the actual height of the building.

Q4

Two large cups of coffee cost $4.00. How much money will Marianne need if she wants to buy nine large cups fo coffee? Buy to View Q5 Nicole earned$72 in 9 h. At this rate, how much would she earn in 12 h?

Q6

The air you breathe is \frac{1}{5} oxygen. What percent of the air is made up of other gases?

Q7

Copy and complete the table to express the equivalent forms in each row. Q8

Calculate.

\displaystyle 40 \%  of 35 is \square

Q9a

Calculate.

21 out of 30 is \displaystyle \square \% .

Q9b

Calculate.

\displaystyle 38 \%  of \square is 95 .

Q9c

At a baseball game, the stadium is 65% full. If the stadium's capacity is 1800, how many people are at the game?

Q10

Braydon buys a new CD and pays 8% sales tax. If the sales tax is $1.20, calculate the price of the CD. Buy to View Q11 Akeem bought a used video game for$38. Later, he sold it for 40% less than he paid. For how much did Akeem sell the video game?

Q12

The ratio of children to adults at an art show is 22:18.

What percent of the crowd are children?

Q13a

The ratio of children to adults at an art show is 22:18.

What percent of the crowd are adults?

Q13b

Why is calculating 10% of an amount easier than calculating 17% of the amount?

Q14

How is calculating 1% of an amount similar to calculating 10% of the amount?

Q15

Why might you calculate 50% of 212 in a different way than you would calculate 42% of 212?

Q16

1.4\times3.5

Q17a

0.7\times7.34

Q17b

65.2\div12.9

2.46\div0.53
How much greater is 27.9\times4.5 than 27.9\div4.5?