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kupik [55]
3 years ago
7

There are 2 answers for this

Mathematics
1 answer:
Lyrx [107]3 years ago
3 0

Answer:

There were 30 questions on the test so she got 3 questions wrong.

Step-by-step explanation:

Given that:

Correct answers by Emma = 27

Percentage of correct answers = 90%

Let,

x be the total number of questions on test

90% of x = 27

\frac{90}{100}x=27

0.9x=27

Dividing both sides by 0.9

\frac{0.9x}{0.9}=\frac{27}{0.9}\\x=30

There were 30 questions on the test.

Wrong answers = Total questions - Correct answers

Wrong answers = 30-27 = 3

Hence,

There were 30 questions on the test so she got 3 questions wrong.

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Answer:

Step-by-step explanation:

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stiks02 [169]

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Step-by-step explanation:

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Then we plot them on graph ( as provided in attachment)

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