SAT Math Practice Question #36627 - SATify | SATify

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SAT Math Practice Question #36627 - SATify | SATify

#36627

money

linear equations

systems

medium

75 sec

A piggy bank contains only nickels and dimes. There are a total of 80 coins in the piggy bank, and their combined monetary value is $6.20. L e t$ n $re p rese n tt h e n u mb ero f ni c k e l s an d$ d $re p rese n tt h e n u mb ero fd im es . Whi c h sys t e m o f e q u a t i o n sre p rese n t s t hi sre l a t i o n s hi p ?$

A.

$\{\egin{array}{l} n + d = 6.20 \\ 0.05n + 0.10d = 80 \end{array}$

B.

$\{\egin{array}{l} n + d = 80 \\ 0.05n + 0.10d = 6.20 \end{array}$

C.

$\{\egin{array}{l} n + d = 80 \\ 5n + 10d = 6.20 \end{array}$

D.

$\{\egin{array}{l} n + d = 6.20 \\ 5n + 10d = 80 \end{array}$