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#30457

money

linear equations

systems

easy

60 sec

A school store sells pencils for $$0.50$ each and pens for $$1.25$ each. On Monday, the store sold a total of 80 pencils and pens, earning a total of $$70$ . Which of the following systems of equations could be used to determine the number of pencils, $p$ , and the number of pens, $e$ , sold?

A.

$p + e = 70$
$0.50 p + 1.25 e = 80$

B.

$p + e = 80$
$0.50 p + 1.25 e = 70$

C.

$p + e = 80$
$1.25 p + 0.50 e = 70$

D.

$p + e = 70$
$1.25 p + 0.50 e = 80$