c.) The tires of an automobile have a diameter of 22 in. If the wheels revolve 18 times, how many feet does the automobile move?
2 answers:
You use the circumference formula to find the circumference of the tire. Multiply it by 18 Bc it revolves 18x. Then since it was in inches they ask for feet instead so divide the answer by 12 to get your answer. Mine is the exact answer and the question asks for rounding it to the nearest hundredth, just use calculator or replace the pi as 3.14
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Answer:
The number of calculators is 4871
Step-by-step explanation:
If we integrate dx/dt we get x, which is the number of calculators. To find the number of calculators between the beginning of third week to the end of fourth week (the beginning of fifth week), this integration must be evaluated at t between 3 and 5.
the result of the integration is:
to be evaluated between 3 and 5, which is:
There are many ways to solve simultaneous linear equations. One of my favorite for finding integer solutions is graphing. The attached graph shows the solution to be ...
... (x, y) = (4, 7)
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You can also use Cramer's Rule, or the Vedic math variation of it, which tells you the solution to
is given by
Here, that means
... x = (9·67-5·75)/(9·8-5·3) = 228/57 = 4
... y = (75·8-67·3)/57 = 399/57 = 7
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A (graphing) calculator greatly facilitates either of these approaches.
