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solniwko [45]
3 years ago
15

Calculate each unit rate.

Mathematics
1 answer:
anastassius [24]3 years ago
8 0

Answers:

  • a) 72 km per hour
  • b) 3 meters per second
  • c) 0.20 dollars or 20 cents per lemon
  • d) 50 dollars per day

====================================

Explanation:

  • a) Divide the distance over time to get the unit rate, which is the speed in this case. Speed = distance/time = 288/4 = 72 km per hour.
  • b) Like before, divide the distance over time to get 75/25 = 3 meters per second.
  • c) We want the cost of 1 lemon. So we'll divide the total cost over 7 to get (1.40)/7 = 0.20 dollars = 20 cents per lemon
  • d) Divide the total cost over the 5 day period. This will get the cost of each day. So we have a unit cost of 250/5 = 50 dollars per day.
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Step-by-step explanation:

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Irina-Kira [14]

Answer:

First number=22

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Step-by-step explanation:

Since you don't know either of the numbers we can call the first number x. The second number is the first number plus 6 or x+6. The sum is 22 more than the larger number so x+6+22 or x+28. Using this we can create the equation x+x+6=x+28. In order to isolate x we would subract x from both sides ending up with x+6=28. Then subract 6 from both sides to get x=22. This means the first number equals 22. Then to solve for the second number you plug 22 in for x to get the equation 22+6= the second number, so the second number is equal to 28. Look below for just the equation.

x+x+6=x+6+22

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3 years ago
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