Tuesday, May 17, 2016

Simplifying Ratio
This first page uses only the concepts from last lesson.

Green – these questions are not too tricky so do these to get you started. Simplify:

1)     4 : 8 =
3)  20 : 30 =
5)  10 : 100 =
7)  11 : 22 =
2)    5 : 10 =
4) 21 : 35 =
6)  4 : 16 =
8)  10 : 20 =

Orange – these questions are a little trickier than the green questions. They include 3-part ratios, fractions, decimals and/or units of measure.  Simplify:

1)     2 hours : 30 min =
4)    35cm : 2m =
7) 36 g : 0.5 kg =
2)    2.8 : 0.7 =
5)    6 : 1.6 =
8)   =
3)     =
6)    5 : 15 : 55 =
9) 8 : 12 : 36 =

Red – these questions are the trickiest require you to interpret worded questions.


1)     There are 32 students in a class. 20 of them are girls. What is the ratio of boys to girls in its simplest form?









3)    There are 2 flavours of jellybeans left in a bag; Black Liquorice and Buttered Popcorn.  The ratio of Liquorice to Popcorn flavoured jellybeans is 15:25.  If there are 36 Liquorice jellybeans left, how many Popcorn jellybeans are left?
2)    A fruit drink to serve 8 people is made by mixing 60ml of orange juice with 180ml of pineapple juice.  If you want to make the same juice to serve 12 people, how much pineapple juice do you need?



4)    Concrete is made by mixing sand, water and concrete mix in the ratio of 12 parts sand, 8 parts water and 6 parts concrete mix. If 15 kg of cement is used, how much sand must be used?

Reflection:

Our first unit for math was ratios. And we were assigned to do a worksheet about ratios, which was simplifying ratios. I was a thinker, because i was trying to figure out the answers for the questions.



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