Posted by Tamaki on Tuesday, November 12, 2013 at 1:33am.
If refreshments cost $45 for 18 people, at the same rate how much would refreshments cost for 26 people?

algebra  Jai, Tuesday, November 12, 2013 at 3:49am
Let n = cost of refreshments for 26 people.
We can do ratio and proportion here. For every 18 people, the cost of refreshments is $45, while for every 26 people, the cost of refreshments is $ n. Thus,
18 / 45 = 26 / n
We crossmultiply:
18n = 45 * 26
18n = 1170
Divide both sides by 18 to get n alone:
18n / 18 = 1170 / 18
n = $65
Hope this helps :3
Answer This Question
Related Questions
 algebra  If refreshments cost 45$ for 18 people, at the same rate, how much ...
 math  The cost of refreshments (in dollars) is a function, h, of the number of ...
 math  The cost of refreshments (in dollars) is a function, h, of the number of ...
 math  The cost of refreshments (in dollars) is a function, h, of the number of ...
 Math  The table shows the cost of a ski rental package for a given number of ...
 Algebra 2  the cost c of going to the movies varies directly with the number of...
 algebra 2  A drama club is planning a bus trip to new york city to see a ...
 MATH  The first month's dues will be used to rent a film about computerrelated...
 algebra  I hope they are hungry mr. bratwurst has donated 1513 hot dogs, and Mr...
 Math  A museum calculates the rate for groups using the equationC=4P+8,where P ...
More Related Questions