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-BARSIC- [3]
3 years ago
8

Linda's penny bank is 1/4full. After she adds 360 pennies, it is 5/8 how many pennies can Linda bank hold?

Mathematics
2 answers:
Leokris [45]3 years ago
6 0
The answer for your question is 480.
Hope it helps!
ZanzabumX [31]3 years ago
5 0
X=# of pennies the bank can hold(1/2)x+80=(2/3)x80=(2/3)x-(1/2)x80=(4/6)x-(3/6)x80=(1/6)xx=80*6x=480 pennies (how many pennies the bank can hold)check: 1/2 full means 240 penniesadd 80 pennies240+80=320320/480=32/48=2/3

hope that helps


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Brrunno [24]

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The distance between two points is given by,

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The polar coordinates of A can be written as (Distance, tan^{-1} \frac{y}{x} )

Distance = \sqrt{x^{2} +y^{2} }

Substituting A(2,-4), we get,

Distance = \sqrt{2^{2} +(-4)^{2} }=\sqrt{4+16 }=4.47

tan^{-1} \frac{y}{x} =tan^{-1} \frac{-4}{2}=-63.43

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\theta=360-63.43=296.57

The polar coordinate of A is \left(4.47,296.57\right)

Similarly, The polar coordinate of B can be written as (Distance, tan^{-1} \frac{y}{x} )

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Substituting B(-3,3), we get,

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tan^{-1} \frac{y}{x} =tan^{-1} \frac{3}{-3}=-45

To make the angle positive, let us add 360,

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