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3 years ago

Explain how to use grouping symbols to organize information appropriately.

2 answers:

7 0

The use of grouping symbols in math shows us which part of the problem or expression should be done first. Brackets, braces and parentheses are common grouping symbols used in mathematics. If no symbol is shown between brackets, forexample, (3+7)(8+1) it means that you should multiply after simplifying the operations inside the brackets.

muminat3 years ago

5 0

Answer: Grouping symbols in mathematics are the symbols which are used to group numbers or variables.There are three common types of grouping symbols such as parentheses ( ), brackets [ ], and braces { }.

There are some rules such as PEDMAS [parentheses,exponents,divide,multiply,addition,subtraction]or BEDMAS [brackets,exponents,divide,multiply,addition,subtraction] and BODMAS [bracket,of,divide,multiply,addition,subtraction] which are used in sequence from left to right to organize information appropriately and simplify the problem to get the answer.

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In 1970, a farmer using a two-row combine with a corn head could easily harvest 0.75 ha (1.85 acres) per hour and a typical corn

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Answer:

The value is $w = 6.7 \%$

Step-by-step explanation:

Generally the productivity rate is mathematically represented as

$P_r = K * Z$

Here K is the ha the farmer could harvest in an hour and Z is a typical yield of corn in kg/ha

Now considering 1970

The productivity rate is

$P_r = 0.75 *5000$

=> $P_r = 3750 \ kg/h$

Now considering 1940

The productivity rate is given as $P_R = 250 \ kg/h$

Generally the productivity ratio is mathematically ration is mathematically represented as

$w = \frac{P_R}{P_r} * 100$

=> $w = \frac{250}{3750} * 100$

=> $w = 6.7 \%$

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