1.One group of children has 15 red blocks and 45 green blocks. Another group of children has 30 red blocks and 90 green blocks. Which proportion correctly describes the relative amounts of each color?(1 point)
Responses
15/45
Start Fraction 15 over 45 End Fraction
15/45 = 30/90
Start Fraction 15 over 45 End Fraction equals Start Fraction 30 over 90 End Fraction
15/45 = 90/30
Start Fraction 15 over 45 End Fraction equals Start Fraction 90 over 30 End Fraction
1/3
2. About 4,000 new species of marine animals were discovered in the last 2 years. What is the unit rate of discovery?(1 point)
Responses
1 species2,000 years
Start Fraction 1 species over 2,000 years End Fraction
2,000 speciesyear
Start Fraction 2,000 species over year End Fraction
4,000 species2 years
Start Fraction 4,000 species over 2 years End Fraction
2 years4,000 species
3 answers
Start Fraction 2 years over 4,000 species End Fraction
1.One group of children has 15 red blocks and 45 green blocks. Another group of children has 30 red blocks and 90 green blocks. Which proportion correctly describes the relative amounts of each color?(1 point)
Responses
15/45
Start Fraction 15 over 45 End Fraction
15/45 = 30/90
Start Fraction 15 over 45 End Fraction equals Start Fraction 30 over 90 End Fraction
15/45 = 90/30
Start Fraction 15 over 45 End Fraction equals Start Fraction 90 over 30 End Fraction
1/3
Responses
15/45
Start Fraction 15 over 45 End Fraction
15/45 = 30/90
Start Fraction 15 over 45 End Fraction equals Start Fraction 30 over 90 End Fraction
15/45 = 90/30
Start Fraction 15 over 45 End Fraction equals Start Fraction 90 over 30 End Fraction
1/3
The correct proportion that describes the relative amounts of each color is:
15/45 = 30/90
15/45 = 30/90