I can compare ratios by finding unit rates or using equivalent ratios.Puedo comparar razones hallando tasas unitarias o usando razones equivalentes.
MissionMisión · Rooftop GardenJardín en la azotea
Grow your skills.Haz crecer tus habilidades.
Rooftop Garden is testing soil mixes, fertilizers, and seed plots. Each pair of plans uses different amounts, so you must put them on equal footing before you decide which grows best.
Rooftop Garden está probando mezclas de tierra, fertilizantes y parcelas de semillas. Cada par de planes usa cantidades distintas, así que debes ponerlos en igualdad antes de decidir cuál crece mejor.
Word bankBanco de palabras 5 words5 palabrascompare, unit rate, equivalent ratio, …comparar, tasa unitaria, razón equivalente, …
- comparecomparar
- To decide which ratio is greater, less, or equal.Decidir qué razón es mayor, menor o igual.
- unit ratetasa unitaria
- A rate for exactly 1 of something, like the cost for 1 item.Una tasa para exactamente 1 de algo, como el costo de 1 artículo.
- equivalent ratiorazón equivalente
- Two ratios that mean the same thing, like 1:2 and 2:4.Dos razones que significan lo mismo, como 1:2 y 2:4.
- common multiplemúltiplo común
- A number that is a multiple of two or more numbers.Un número que es múltiplo de dos o más números.
- benchmarkpunto de referencia
- A shared amount you scale both choices to so you can compare them.Una cantidad compartida a la que escalas ambas opciones para poder compararlas.
Stage 1 of 5Etapa 1 de 5
Get ReadyPrepárate
Wake up what you know, then explore today's model.
Activa lo que sabes y luego explora el modelo de hoy.
- The model shows 4 cups of color and 12 cups of white. Compare it with a reference mix of 3 cups of color to 8 cups of white. Make the white the same in both mixtures. Which mixture is stronger? Show the equivalent ratios you used.
- A rooftop planter uses 12 liters of water for 8 plants. How many liters is that for each plant?
- Two garden timers repeat every 4 days and every 6 days. What is the least common multiple of 4 and 6?
- Two seed mixes have 0.4 and 0.375 grams of seed in each gram of soil. Which mix has more seed in each gram of soil?
- The mix with 0.375 grams
- They have the same amount
- The mix with 0.4 grams
- You cannot compare them
- 1 fresh problem with new numbers each time (interactive only).
Stage 2 of 5Etapa 2 de 5
Try ItInténtalo
Use the hints when you need them. Every wrong answer tells you why.
Usa las pistas cuando las necesites. Cada respuesta incorrecta te dice por qué.
- Chef A uses 2 cups of cheese for every 8 crackers. Chef B uses 3 cups of cheese for every 9 crackers. Who uses more cheese per cracker?
- Chef A
- Chef B
- They use the same amount
- Cannot determine
- Which ratio is greater: 3:4 or 5:8?
- 5:8
- 3:4
- They are equal
- Cannot determine
- Which lemonade recipe is more lemony? Recipe A: 2 lemons for 6 cups of water. Recipe B: 3 lemons for 7 cups of water.
- Recipe B
- Recipe A
- They are the same
- Cannot determine
Stage 3 of 5Etapa 3 de 5
On Your OwnPor tu cuenta
Tables, mistakes to find, and problems with a few steps.
Tablas, errores por encontrar y problemas de varios pasos.
- Store A sells 3 mangoes for $6. Store B sells 5 mangoes for $9. Which store offers a better price per mango?
- Store A
- Same price
- Store B
- Cannot determine
- Fill in the table
- Spot the Common Mistake
- What is the best next move?
- Compare 8 scoops and 9 scoops. Mix B has more, so B is stronger.
- Find the scoops per 1 liter of water in each mix, then compare them.
- Subtract: 8 − 5 = 3 and 9 − 6 = 3. They match, so the mixes are equal.
Stage 4 of 5Etapa 4 de 5 · OptionalOpcional
Practice MorePractica más
Optional extra practice. Press New numbers for another problem on the same skill.
Práctica extra opcional. Toca Números nuevos para otro problema de la misma habilidad.
- 5 fresh problems with new numbers each time (interactive only).
Stage 5 of 5Etapa 5 de 5
Show What You KnowDemuestra lo que sabes
Show what you learned today. Take your time; you can try again.
Muestra lo que aprendiste hoy. Tómate tu tiempo; puedes intentarlo otra vez.
- What is Mario's price per pizza?
- $4.50
- $8.33
- $9.00
- $18.00
- What is Sal's price per pizza?
- about $7.50
- about $8.33
- about $9.00
- about $12.50
- Which shop is the better deal?
- Mario's, because $18 is less than $25
- Mario's, because 2 is less than 3
- Sal's, because $8.33 per pizza is less than $9.00
- They cost the same