Science - Quiz Tuesday 9 J and 9F on Chapter 3.
Math - 9f . Make sure 1,2 a,b,c 3 from "working together' and 1-4 from the bottom of the proportions sheet are done.
Example of expectation:
In a bag of red and green sweets, the ratio of red sweets to green sweets is 3:4. If the bag contains 120 green sweets, how many red sweets are there?
Step 1: Assign variables :
Let x = red sweets
Write the items in the ratio as a fraction.
Step 2: Solve the equation
Cross Multiply
4 × x= 3 × 120
4x=360
Isolate variable x
Answer: There are 90 red sweets.
