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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.
If the roots of the equation (a-b) x 2 + (b-c) x+ (c - a)= 0 are equal. Prove that 2a=b+c. Ans: (a-b) x 2 + (b-c) x+ (c - a) = 0 T.P 2a = b + c B 2 - 4AC = 0
1. A survey line on campus is measured to be 1000.00 ft long on horizontal ground. The elevation of the line is 700.00 feet and the geoid separation from ellipsoid to geoid is -110
In the adjoining figure, ABCD is a square of side 6cm. Find the area of the shaded region. Ans: From P draw PQ ⊥ AB AQ = QB = 3cm (Ans: 34.428 sq cm) Join PB
E1) How is the 'comparison model' different from the 'complementary addition model'? E2) Create one word problem related to the children's world for each of the 4 models liste
to use newspaper and report on share and dividend
Mark has three 4 1/2 oz cans of tomatoes and ?ve 8 1/4 oz cans. How many ounces of tomatoes does Mark have? Ignore the fractional parts of the mixed numbers at first and mul
The sum of the smallest and largest multiples of 8 up to 60 is?
Q. Explain Set Intersection? Ans. Set Intersection Suppose your school needs to know which students are taking both art and business this year. If A is the set of studen
give the solution
a company of 10000 shares of rs 100 each declares a annual dividend of 5 %.what is the total amount dividend paid by the company
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