<PRE><B>Question 985795</B>
.
x=number of snowboards; y=number of skis
x+y=28
x=28-y Use this to substitute for x.
.
$19x+$16y=$478 Substitute for x from above.
$19(28-y)+$16y=$478
$532-$19y+$16y=$478
-$3y=-$54
y=18 ANSWER 1: 18 members rented skis.
x=28-y=28-18=10 ANSWER 2: 10 members rented snowboards.
.
CHECK:
$19x+$16y=$478
$19(10)+$16(18)=$478
$190+$288=$478
$478=$478

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