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olasank [31]
3 years ago
9

Mary is preparing for her college entrance exams in a practice test she answered 12 problems in 30 minutes at this rate how many

questions can she expect to answer in 100 minutes
Mathematics
1 answer:
kap26 [50]3 years ago
6 0

Answer:

40 problems in 100 minutes

Step-by-step explanation:

This is a ratio problem.

You first divide 30 minutes by three to get how many problems she can do in 10 minutes. What you do to one side you do to the other side. So then, you should have 4 problems in 10 minute. Then, you multiply 10 by 10 and 4 by 10 to get 40 problems in 100 minutes.

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Step-by-step explanation:

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If ?2000 is placed into a bank account that pays 3% compound interest per year,how much will be in the account after 2 years?
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500,000 in expanded form
Yuri [45]

Answer:

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 5 × 100,000  

+ 0 × 10,000  

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+ 0 × 100  

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Step-by-step explanation:

there are more then one ways of writing this so here's another example

500,000 =

 500,000  

+ 0  

+ 0  

+ 0  

+ 0  

+ 0  

5 0
1 year ago
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ruslelena [56]
2x=35
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That the answer
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