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Give the introduction to Ratios and Proportions?
A ratio represents a comparison between two values. A ratio of two numbers can be expressed in three ways:
A ratio of "one to two" can be written as:
1 to 2 or 1: 2 or 1/2A proportion is made up of two ratios with an "=" (equal) sign between them.
For example:
1/2 = 2/4
Solving Proportions With One Unknown When a proportion is written with one unknown number, the unknown is usually represented by "x".
To solve for an unknown in a proportion: 1. Cross-multiply: multiply the numbers that are diagonal to each other.2. Set the two products equal to each other.3. Divide both sides by the number next to the x.
Sin+cos
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If a^n+1 + b^n+1/a^n + b^n is the arithmetic mean of a and b then find n. Answer:Arithmatic mean of a,b is =(a+b)/2 from the problem (a+b)/2=(a^n+1 +b ^n+1)/(a^n+b^n) then (a+
Errors Are Useful : While teaching children, you must have found theft making mistakes off and on. How do you respond to the errors'? What do they tell you about the child-failur
How to get assignment to solve and earn money
2/3 - 7/12
Which expression has an answer of 18? Use the order of operations and try every option. The first option results in 14 since 2 . 5 = 10, then 10 + 4 = 14. This does not work. T
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If you have 60% alcohol and wish to dilute with water to make 12 liters 40% alcohol, How many liters of water should you add?
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