Part to part and Part to Whole
What is the part to part ratio of black to white circles?
⚫⚫⚫⚫⚫ and ⚪⚪⚪
5 to 3
What are two ratios that are equivalent to 2:3?
4:6 6:9 8:12 10:15
A bag of apples costs $6 for 4 pounds. Complete the table.
9, 12, 15
What is the equation we use to find the constant of proportionality?
Draw a tape diagram to show the part to part ratio 2:3
Or
What is the part to whole for cactus?
🌵🌵🌵🌵 and ☀️☀️☀️☀️☀️
4 to 9
If the ratio of cats to dogs is 4:8, how many dogs would there be if there were 16 cats?
32 dogs ---16:32
Complete the table.
Missing numbers are:
28, 36, 48
What is the equation we use to find K?
k=y/x
Draw a tape diagram to show the part to whole for the ratio 2:1
Write the ratio of ants to lady bugs in all three forms.
🐜🐜🐜 and 🐞🐞🐞🐞
3 to 4
3:4
3/4
The ratio of pencils to pens is 2:5. If there are 10 pencils, how many pens are there?
25 Pens
Which color line is proportional?
Green
What is the constant (K) for the table shown?
k = 3
Draw a double number line for the table shown.
0------5------10------15-----20-----l
0------2-------4-------6------8------l
You have 7 cats and 6 dogs. What is the part to part and part to while for cats?
7 to 6
7 to 13
A recipe calls for 2 cups of sugar for every 4 cups of flour. If you use 8 cups of sugar, how many cups of flour will you need?
16 cups of flour.
Which of these lines are proportional?
What is the constant (k) for the table shown?
k = 4
Create a double number line for the ratio 3:4.
Must show 4 places
0-----3-----6-----9-----12-----l
0-----4-----8----12-----16-----l
What do we call the relation between two amounts using their numerical values?
What is it called when ratios that look different but represent the same comparison or relationship?
Equivalent Ratios
For a line to be proportional on a coordinate plane. What must the line do?
Cross through the point (0,0)
How would we write an equation for the table shown:
y = 4x
Write a ratio that tells me the part to whole for cupcakes with strawberries on them.
5:30