SOLUTION: Some Manitoba resechers measured wheat heights to see how the height was affected by by fertilizer application. A crop with no fertilizer reached a height of 79.4 cm, and one that

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: Some Manitoba resechers measured wheat heights to see how the height was affected by by fertilizer application. A crop with no fertilizer reached a height of 79.4 cm, and one that       Log On


   



Question 1063873: Some Manitoba resechers measured wheat heights to see how the height was affected by by fertilizer application. A crop with no fertilizer reached a height of 79.4 cm, and one that received fertilizer reached a height of 102.4 cm. What was the percent increase with the fertilizer application? Give your answer to the nearest hundredth of a percent.
Thank you

Found 2 solutions by CubeyThePenguin, ikleyn:
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
(102.4 - 79.4)/(79.4) * 100% = 28.97%

***(fixed)

Answer by ikleyn(52787) About Me  (Show Source):
You can put this solution on YOUR website!
.

            It is strange to me to see so crude mistake in so simple and routine task in the post by @Penguin.

            I came to bring the correct solution.


The percent increase is  %28%28102.4+-+79.4%29%2F79.4%29%2A100 = 28.97%.

Solved (correctly).

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On percentage,  see the lessons
    - Percentage problems
    - Percentage word problems (Type 1 problems, Finding the Part)
    - Percentage word problems (Type 2 problems, Finding the Rate)
    - Percentage word problems (Type 3 problems, Finding the Base)
    - Simple percentage problems
    - More complicated percentage problems
    - Advanced problems on percentage
    - Percentage problems on chains of discounts
    - Problems on percentage that lead to unexpected results
    - OVERVIEW of lessons on percentage problems
in this site.

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Start from the very first lesson of the list.

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For your safety,  ignore the post by  @Penguin,  since it is  TOTALLY  WRONG.