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r-ruslan [8.4K]
3 years ago
11

Violet finds some nickels and pennies under the couch cushions. How much money (in dollars) does she have if she has 140 nickels

and 70 pennies? How much money (in dollars) does she have if she has xx nickels and yy pennies?
Total value, 140 nickels and 70 pennies (dollars):

Total value, xx nickels and yy pennies (dollars):
Mathematics
1 answer:
Fiesta28 [93]3 years ago
4 0

Answer:

$7.70

Step-by-step explanation:

140x5=700

70= well 70

700+70=770

770/100+7.7

7.7 in money is 7 dollars and 70 cents

:)

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The earth is 40000 kilometers around. There is no need to round off because the circumference already contains significant figures.

How do I calculate a circle's circumference?

A circle's diameter is multiplied by to determine its circumference (pi). You can also determine the circumference by multiplying 2radius by pi (=3.14).

Given: theta angle (central) = 7.2°; arc length S = 800 km

This indicates that an 800 km long arc is extending a circle with a 7.2° center angle ( earth in this case).

By definition, "An arc's length is a portion of a circle's diameter."

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As a result, the stated arc length (800km) with a 7.2° central angle is 1/50th of the entire circle.

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Values substituted: circumference 800 = 360° 7.2°

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