There is a mathematical formula which relates these quantities, given by:

Using this, we have:
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10 km in .5 hour. Since it is the same as 20 km in 1 hour. Multiplied by 2.
20 is greater than 15.
Please mark as best!
Answer:
4/7 of purple paint is red paint.
Step-by-step explanation:
Each term has a common divisor of
:

133 = 7*19, so the number in the blanks is
.