1.3 Understand Proportional Relationships

Multiple Choice

• 3 feet to 1 week

• 6 feet to 3 weeks

• 9 feet to 3 weeks

Multiple Choice

Determine which of the three ratios is not equivalent to the other two.

• 3 adults to 36 students

• 4 adults to 48 students

• 5 adults to 50 students

Multiple Choice

Determine which of the three ratios is not equivalent to the other two.

• 8 months to 3 centimeters

• 12 months to 4 centimeters

• 18 months to 6 centimeters

Open Ended

Why is it necessary for the ingredients to stay the same ratio when you make 2 batches, instead of one?

Open Ended

​Write down all of the vocabulary and examples in your spiral notebook.

You can use them on tomorrow's quiz.

Open Ended

Give an example of two ratios that are proportional.

Open Ended

Give an example of two ratios that are non-proportional.

Multiple Select

Is the ratio 14:7 proportional to 19:12? Why?

Choose the two choices that answer this question.

• yes, the ratio is maintained

• no, the ratio is not maintained

• The ratio of 2:1 is maintained.

• The ratio of 19:12 is not the same as the ratio of 14:7

Open Ended

What age will Pedro and his brother be if the ratio is maintained?

Open Ended

Multiple Select

Is the ratio between vinegar and water proportional or non-proportional? Why?

Select two choices.

• proportional

• non-proportional

• The ratio was maintained.

• The ratio was not maintained.

Open Ended

Multiple Select

Is the ratio Marcus used between vinegar and water proportional or non-proportional? Why?

Select two choices.

• proportional

• non-proportional

• The ratio was maintained.

• The ratio was not maintained.

Multiple Choice

• yes

• no

Open Ended

What is the unit rate for the first city?

Open Ended

What is the unit rate for the second city?

Open Ended

Multiple Choice

• yes

• no

Math Response

Type answer here

Correct Answer: 150

Deg^°

Rad

The original ratio is 1 pt cement to 2 parts sand to 3 parts gravel.
To maintain the ratio, multiply each part by 25.

So, she will need
25 pounds of cement
50 pounds of sand
75 pounds of gravel

The total weight would be 25 + 50 + 75 = 150 pounds

Math Response

Type answer here

Correct Answer: 4.5

Deg^°

Rad

​3 x 24 = 72 tablespoons of white glue, which is 4.5 cups.

Multiple Choice

• yes

• no