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faust18 [17]
2 years ago
14

Marco puts his coins into stacks. Each stack has 10 coins.

Mathematics
1 answer:
Harrizon [31]2 years ago
3 0

Answer:

Marco has $57.50 in total.

Step-by-step explanation:

17 x 10 = 170 quarters

170 x 0.25 = $42.50

11 x 10 = 110 dimes

110 x 0.10 = $11.00

8 x 10 = 80 nickels

80 x 0.05 = $4.00

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Two 120 resistors are connected in parallel across voltage supply of 10 vdc what’s the current in this circuit
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Step-by-step explanation:

This is an applied mathematics question

Resistors in parallel  ⁾/R = ¹/₁₂₀ + ¹/₁₂₀ since the resistor is two 120

Therefore , resolve into fraction now yield

                       ¹/R                              =         1 + 1  

                                                                    -------

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Therefore,                                  ¹/R   =      ¹/₆₀

 Cross multiply to get R the resistance

                                                      R  =  60

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There fore making I the subject of the formula

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                                                          = 10/60

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                                                          = 0.167 A, A = ampere which is the unit of current.

                   

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