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notsponge [240]
2 years ago
11

In Australia the size of a typical home has increased from 220m to 245m over the past 10 years. Find the ratio of house area tod

ay compared to 10 years ago.
Mathematics
1 answer:
vlada-n [284]2 years ago
3 0
220:245 or it can be simplified to 44:49
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Deanna gets 3 problems incorrect on her math quiz and scores 85%. How many questions were on the quiz?
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Answer:

There were 20 questions on the quiz

Step-by-step explanation:

In this question, we are concerned with knowing the number of questions on a quiz, given that Deana had a certain percentage after scoring an amount of marks.

We proceed as follows;

Let the number of questions on the quiz be X.

Now, she got 85% by making 3 incorrect choices. This means the percentage of questions she got incorrectly would be 100-85 = 15%

what we are saying is that it is just 15% of her questions that were wrong.

This mathematically;

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2 years ago
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The correct answer is:

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