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DiKsa [7]
3 years ago
9

Ayden earned a grade of 89% on his multiple choice history final that had a total of

Mathematics
2 answers:
Genrish500 [490]3 years ago
4 0

Answer:

178

Step-by-step explanation:

Method 1: Set up a proportion

Set up an equation of the form:

\frac{\color{red}{\text{part}}}{\color{orange}{\text{whole}}}=

whole

part

​  

=

\,\,\frac{\color{blue}{\text{percent}}}{100}

100

percent

​  

 

Assign the variable xx to the unknown value:

\color{red}{x}=

x=

\,\,\color{red}{\text{part}}

part

The question asks what \textit{part}part of the total questions is 89%

Substitute the known values with the numbers given in the problem, and the unknown value with xx:

\frac{\color{red}{x}}{\color{orange}{200}}=

200

x

​  

=

\,\,\frac{\color{blue}{89}}{100}

100

89

​  

 

Solve for xx:

100\cdot\color{red}{x}=

100⋅x=

\,\,\color{orange}{200}\cdot\color{blue}{89}

200⋅89

Cross multiply

\frac{100x}{100}=

100

100x

​  

=

\,\,\frac{17800}{100}

100

17800

​  

 

Divide both sides by 100

178

Simplify

Method 2: Convert to decimal and multiply

{89}{100}=0.89

89%=  

100

89

​  

=0.89

Move decimal 2 places to the left

{Multiply result by the total:}

Multiply result by the total:

0.89{200}=

0.89⋅200=

178

number

percent

178

89%

200

100%

Aloiza [94]3 years ago
4 0

Answer:

178

Step-by-step explanation:

just trust meee

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xxTIMURxx [149]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Pepsi [2]
A) x/y = 2/3
B) x + y = 105
Solving Equation A for y
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3 years ago
Ruby conducted a survey and found that 5/6 of her classmates have a pet and 2/3 of them are dogs what fraction of her classmates
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This is how I would solve it, I would act as if there were 36 people in the class.
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A grid of 100 squares shows 7 shaded squares what decimal number is represented
svp [43]

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Step-by-step explanation:

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