Ratio and Proportion

​ratio and proportion

Term 2 - Week 1​

​Write a proportion for each situation

Five mangoes for Php 160 is the same price as 10 mangoes for Php 320

​Write a proportion for each situation

Five mangoes for Php 160 is the same price as 10 mangoes for Php 320

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5:160

​Write a proportion for each situation

Five mangoes for Php 160 is the same price as 10 mangoes for Php 320

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5:160 = 10:320​

​Write a proportion for each situation

Traveling 60km per hour means going 180 km in 3 hours

​Write a proportion for each situation

Traveling 60km per hour means going 180 km in 3 hours

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60:1

​Write a proportion for each situation

Traveling 60km per hour means going 180 km in 3 hours

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60:1= 180:3

Multiple Choice

If an egg costs Php 6, people will buy a dozen for Php 72

• 6:1= 12:72

• 1:6 = 12:72

• 1:12 = 6:72

• 1:6 = 72:12

Multiple Choice

Six scoops of ice cream for 2 cups is the same as 5 cups for 15 scoops

• 6:2=15:5

• 2:6=15:5

• 6:2=5:15

​Word problem involving ratio and proportion

The ratio of the number of boys to the numbers of girls is 5:3. If there are 20 boys, then how many girls are there?​

Three flowers cost Php 45. How much will 12 flowers cost?

A recipe uses 3 drops of food coloring per 8 glasses of water. How many drops of food coloring is needed for 24 guests?​

If you can buy one bunch of bananas for Php 120, then how many bunches of bananas can you buy with Php 480?​

Fill in the Blank

Jenna bought 10 burgers that cost $60. How much will she pay if she bought 15 burgers?

Fill in the Blank

A board was cut into two pieces whose lengths are in the ratio 2:5. The longest piece was 85 inches. How long was the shortest piece?

Fill in the Blank

Totsakan bought one can of pineapple chunks for $2. How many cans can Stefan buy if he has $16?

​DCG: Word problem involving proportion

Homework: P.83 individual work letter c 11-15​