) Rosa and Arlene are shopping for a
neighborhood picnic. Rosa buys paper plates and
cups for $19.10 and 5 pints of potato salad.
Arlene buys watermelons for $15.55 and 6 pints
of potato salad. They each spend the same total
amount and each pint of potato salad costs the
same amount. Write and solve an equation to
find the cost of one pint of potato salad.

Question

) Rosa and Arlene are shopping for a
neighborhood picnic. Rosa buys paper plates and
cups for $19.10 and 5 pints of potato salad.
Arlene buys watermelons for $15.55 and 6 pints
of potato salad. They each spend the same total
amount and each pint of potato salad costs the
same amount. Write and solve an equation to
find the cost of one pint of potato salad.

calculusxy · Answer

paper plates and watermelon = y 
pints of potato salad (what we want to find) = x

Rosa: 
$y + 5x = $19.10$

Arlene:
$y + 6x = $15.55$

you can use elimination to solve for x (it's much easier)