Ratios
Write the ratio as a fraction in simplest form: 8 to 30
4/15
Do each pair of ratios form a proportion? 2/3 and 6/9
Yes. (18 = 18)
A group of preschoolers has 15 boys and 12 girls. What is the ratio of GIRLS to BOYS?
12/15 = 4/5
A ___________ is a comparison of two quantities by division.
Ratio.
Write the ratios of I's to amount of letters in the word "Mississippi"
4/11
Do the ratios form proportions? 5/4 and 25/16
No (80;100)
A pattern has 4 blue triangles to every 12 yellow triangles. What is the ratio of blue triangles to ALL triangles?
4/16 = 1/4
Ratios that make the same comparison are __________.
Equivalent ratios.
Write the ratio as a fraction in simplest form: 66 inches to 72 inches
11/12
Solve for x. x/20 and 24/60
x=8
Dylan drew 1 heart, 1 star, and 26 circles. What is the ratio of circles to hearts?
26/1
A _____________ is a comparison of two quantities that have different units.
Rate.
I traveled 60 miles in 2 hours. How far did I travel in 1 hour?
30 miles
Solve for x: 12/x = 4/12
x = 36
Noah drew 22 hearts and 76 circles. What is the ratio of circles to ALL shapes?
76/98 = 38/49
How do you know if 2 ratios make a proportion?
The cross products are equal.
Write the ratio as a fraction in simplest form 30 seconds to 5 minutes
What is 6:1
Do the ratios form proportions? 21/6 and 14.3/3?
No (63;85.8)
A pattern has 6 blue triangles to every 42 yellow triangles. What is the ratio of YELLOW triangles to BLUE triangles?
42/6 = 7/1
A ______________ is a statement that two ratios or rates are equivalent.
Proportion.