MFM1P U1_D5

Proportions Warmup

Decide if each pair of ratios forms a proportion. Write Yes or No.

a) 3 18

,7 42

b) 1 5

,8 13

c) 2.3 13.8

,1.2 7.2

Use the cross product to find the missing number in the proportions.

a) 2 18

63x b)

7 35

12 y c)

5

8 56

m

a) The ratio of boys to girls in Grade 9 at Escarpment High is 7:6. There are 192 girls in the grade. How many boys are there?

b) On a motorbike trip, Glen travelled 360 km in 5 hours. At that rate how far could he travel in 8 hours?

c) On a map, 1.5 cm represents 13 km. What is the approximate distance between Toronto and Hamilton if the distance between them on the map is 31.2 cm?

d) If it were possible to drain all the water from a 90 kg person, his dehydrated body would have a mass of 40 kg. Using this ratio, what would the mass of tissue be for a 117 kg person?

MFM1P U1_D5

MFM1P U1_D5

Across 2. money that is paid for the use of money, usually according to a predetermined percent 7. money - bills and coins 8. the number of parts per 100; the numerator of a fraction with denominator 100 9. a fee or payment given to a salesperson, usually a specified percent of the person's sales 10. money added to a total purchase and is collected for the government 11. a comparison of two or more quantities with the same units Down 1. the term below the line in a fraction 3. an indicated quotient of two quantities 4. the term above the line in a fraction 5. an amount of money deducted from the overall price, usually noted as a percent 6. a statement that two ratios are equal 11. a comparison of two quantities with different units

ratio tax interest percent

commission improper rate Denominator

discount proportion Units fraction

markup currency numerator quantity

Currency Crossword

MFM1P U1_D5

CURRENCY CONVERSION

Country Money Exchange rate (per CAD)

Britain Pound (£) 0.643477£ / CAD

France Euro (€) 0.737266€ / CAD

Mexico Pesos ($) $13.1755 / CAD

Uganda Shilling (USh) 2826.12 USh/ CAD

Japan Yen (¥) 78.0041¥ / CAD

1. $5 CAD = £

2. 5000 ¥ = CAD

3. $10 CAD = €

4. 25 000 USh = CAD

5. $50 CAD = $Pes

6. 850 € = CAD

7. $150 CAD = USh

8. 700 £ = CAD

9. $1000 CAD = ¥

10. $500 Pes = CAD