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Vilka [71]
3 years ago
8

John has a total of 13 coins in his pocket. Of the 13 coins, they are all either quarters or dimes. The total value of the coins

is $2.50. How many quarters does John have in his pocket?
Mathematics
1 answer:
lubasha [3.4K]3 years ago
3 0
8 quarters = (8 x .25) = $2.00

5 dimes = (5 x .10) = $.50

$2.00 + $.50 = $2.50

8 + 5 = 13
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the length of a rectangle is 9 centimeters more than the width. the area is 112 square centimeters. find the length and width of
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Here,
let width(b)be x then,
length (l)=9cm+x
area =112 sq cm
now,
area of rectangle=l*b
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or, 112=9x+x^2
or, 0=x^2+9x-112
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either,
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Or,
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x=7cm
therefore,length = 7cm + 9 cm = 16cm and width = 7cm.
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