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Amanda [17]
3 years ago
7

johnny saves all his nickels and dimes in a jar. one day he counted them and found there were 81 coins worth 5.55. how many nick

els and how many dimes were in the jar
Mathematics
2 answers:
Svetlanka [38]3 years ago
6 0
There were 30 dimes($3.00) and 51 nickles($2.55) which makes a total of $5.55 and 81 coins in all.
ad-work [718]3 years ago
4 0
It  will be  50 dimes which equals 5 dollars then 11 nickels which equals 55 cents which makes 5 dollars and 55 cent 
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lbvjy [14]

Given:

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Solution:

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Taking left-hand side, we get

L.H.S.=(2x+3y)(2x-3y)

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L.H.S.=(2)^2(x)^2-(3)^2(y)^2       [\because (ab)^x=a^xb^x]

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8 0
3 years ago
What are the roots of the polynomial equation
rosijanka [135]

Answer:

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Step-by-step explanation:

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Apply the formula:

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5 0
3 years ago
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Step-by-step explanation:

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3 0
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