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how to do ratio and proportion. Here the ratio is also 3 blue squares to 1 yellow square even though there are more squares. When you prepare recipes paint your house or repair gears in a large machine or in a car transmission you use ratios and proportions.
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The trick is to put what we know into this form. Using Proportions to Solve Percents. The ratio between the cost of the markers to the number of markers youre buying 1150 to 9 is equal to the ratio of the cost of 7 markers to the number of markers which is obviously 7.
The ratio is an expression while proportion is an equation which can be solved.
For example when a pair of numbers increase or decrease in the same ratio they are directly proportional. A ratio can be written in three different ways and all are read as the ratio of x to y x. For example when a pair of numbers increase or decrease in the same ratio they are directly proportional. For example a baker needs to triple the size of a cake recipe.
