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anzhelika [568]
4 years ago
12

Sandy has 20 coins that are nickels

Mathematics
1 answer:
Shkiper50 [21]4 years ago
6 0

Answer:

Number of dimes Sandy has = (20 - x)

Step-by-step explanation:

Let the number of nickels Sandy has = N

And the number of dimes she has = D

Total number of coins she has = 20

N + D = 20 ------(1)

If she has the number of nickels = x

Therefore, expression that represents the number of dimes she has will be

x + D = 20

D = (20 - x)

Number of dimes Sandy has = (20 - x)

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Step-by-step explanation:

22 - 2x + 4(x - 2) = 34

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-14           -14

--------------------------------

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/2     /2

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