onesnowflake
onesnowflake onesnowflake
  • 06-06-2018
  • Mathematics
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A math test is worth 100 points and has 30 problems. Each problem is worth either three points or four points. How many four Problems are there?

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sqdancefan
sqdancefan sqdancefan
  • 06-06-2018
If all were 3-point problems, the test would be worth 90. In order to add 10 points to the value, 10 4-point problems are needed.
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