anonymous
  • anonymous
Which of the following is the most appropriate unit to describe the time you can drive a car based on the amount of gas? Minutes per gallon, because the independent quantity is the gallons Minutes per gallon, because the independent quantity is the minutes Gallons per minute, because the independent quantity is the gallons Gallons per minute, because the independent quantity is the minutes
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
can someone please help
FortyTheRapper
  • FortyTheRapper
Let's figure out which one is independent first. The independent one does not depend on the other one Which one makes more sense The number of minutes I drive depends on the number of gallons or The numbers of gallons I have depends on the number of minutes I drive
anonymous
  • anonymous
the first one

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anonymous
  • anonymous
right
FortyTheRapper
  • FortyTheRapper
It would be the second one, actually
anonymous
  • anonymous
oh lol ok
anonymous
  • anonymous
thanks
FortyTheRapper
  • FortyTheRapper
So you know if it's A, B, C, or D?
anonymous
  • anonymous
b
anonymous
  • anonymous
right or something else
FortyTheRapper
  • FortyTheRapper
Not exactly, because minutes isn't independent For example, let's say you have a 50 gallon tank Because you have 50 gallons, that doesn't mean you have to drive for 50 minutes. You could drive for 20 minutes if you wanted. Buttt... if you wanted to drive for 50 minutes, you must have a certain amount of gallons, since minutes depend on the gallons, making gallons independent
anonymous
  • anonymous
ok
anonymous
  • anonymous
so not b but d
FortyTheRapper
  • FortyTheRapper
Right, so we're down to A and C Would you say "My car uses up 2 gallons per 100 minutes of driving" or "My car uses up 100 minutes of driving per 2 gallons"
anonymous
  • anonymous
THE FIRST ONE!!!?!?
FortyTheRapper
  • FortyTheRapper
Lol yep
anonymous
  • anonymous
Thanks a bunch
FortyTheRapper
  • FortyTheRapper
No problem, anytime!
anonymous
  • anonymous
oh can you help me with one more
FortyTheRapper
  • FortyTheRapper
Sure
anonymous
  • anonymous
A rectangle has a length of 9.00 inches and a width of 4.25 inches. What is the area in square inches? Round to the correct significant digits.
FortyTheRapper
  • FortyTheRapper
If I said the formula for the Area of a rectangle is Length x Width, would you know how to find it?
anonymous
  • anonymous
yea
anonymous
  • anonymous
so just multiply
FortyTheRapper
  • FortyTheRapper
Right, that's the first part of this. What would you get?
anonymous
  • anonymous
38.25
FortyTheRapper
  • FortyTheRapper
Correct! Now significant digits. Significant digits is basically putting your answer in the least amount of numbers, according to what the problem gives you: Examples: 3.12334 and 2.4154233 The first number has 6 total digits and the second has 8 total digits, so your answer should only have 6 digits, since that's the lower number One more: 4.56 and 6.78 Both of these have 3 total digits, so the answer will also need 3. Now, for our problem we have 9,00 and 4,25. How many digits should the final answer be in?

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