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8th grade foundations (Eureka Math/EngageNY)
Comparing rates example
Choose and calculate an appropriate unit rate for comparing 3 ratios in context. Order them from least to greatest. Interpret that information in context.
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is 25% the same thing as 1/4(1 vote)
yes! think about it like this, 25 cents is 1/4 of a dollar. because 25+25+25+25= 100, or 25x4= 100! <3(10 votes)
I am dreadfully confused... Does anyone know a simpler way of doing this?(2 votes)
Equivalent rates can be used to compare different sets of quantities that have the same value. A rate that compares a quantity to one is called a unit rate. The unit rate has a denominator equal to one when written as a fraction. Unit rates can be used to find larger equivalent rates.(14 votes)
When Sal divided 100/12, how did he get 8 1/3?(4 votes)
So 12 times 8 would be equal to a total of 96. It can’t be any larger, or it wouldn’t fit in the amount of 100. The remainder that you get after that would be 4. However, since the denominator is 12, you would get 4/12, which is equal to 1/3. That gives you 8 1/3.(8 votes)
how is 8 larger than 8 1/3?(2 votes)
I have to say... the problem is a little vague with it's wording. They seem to be ordering the tanks based on the number of fish in the tank, but doing it by looking at the rates: liters of water per fish. In this situation, the more water needed for 1 fish means the fewer fish you can put in that tank.
Thus: 8 1/3 liters / fish has more water than 8 liters / fish. Thus there are fewer fish in the tank with the 8 1/3 liters / fish.
Hope this helps.(9 votes)
- This is such a weird example(5 votes)
How do you know when to divide(4 votes)
Why is this so easy to me?(3 votes)
Let's just say I'm not paying attention, but this is quite hard.
I was thinking C would be the park with the most aggression because it's only 6.8 hectares with 51 squirrels in it.
A had 8 hectares with 54. Doesn't that count as less? I mean, it had more hectares, so of course more squirrels could fit inside, right?
Please help me out :'((3 votes)
C is the greatest(1 vote)
- IS 25% the same as 1/4?(1 vote)
Yes, it is. For example, if you multiply the numerator by 25 and the denominator by 25, you get 25/100, or 0.25 which is 25%. Of course, you can also think of it as quarters which are $0.25 and you need 4 of them for $1, so one quarter would be 1/4. Hope you have a great day!(4 votes)
- How is 8 bigger than 8 1/3(3 votes)
- Sal made a mistake at2:53when he said 8 is the greatest, but at3:09Sal puts B(8 1/3) as the most. Sal just misspoke and accidentally said 8 is the greatest instead of 8 1/3.(2 votes)
2:53