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JulijaS [17]
2 years ago
14

Nia increased her class average by 3% she now has 92% in her math class

Mathematics
1 answer:
hichkok12 [17]2 years ago
6 0

Answer:

see below

Step-by-step explanation:

1.03  * x  = 92       x = prior percentage

92 / 1.03  = x = 89.32    

She HAD a 89.32 percentage score

   increasing this score   3%   reults in a score of 92

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Answer:

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Step-by-step explanation:

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4 0
3 years ago
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Lisa [10]
STEP 1:
identify variables and equations

x= larger number
y= smaller number

FIRST EQUATION
x + y= 42

SECOND EQUATION
y= 2x - 63


STEP 2:
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substitute y value from 2nd equation

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STEP 3:
find y value; substitute step 2 x value into either original equation

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ANSWER: larger number is x= 35; smaller number is y= 7.

Hope this helps! :)
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3 years ago
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Step-by-step explanation:

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