Ellie wants to buy kiwi and cherries to make a fruit tart. Kiwi cost $4.50 per pound and cherries cost $3.25 per pound. How much does she spend if she buys 2.5 pounds of kiwi and 3 pounds of cherries? How much does she spend if she buys xx pounds of kiwi and yy pounds of cherries?
Total cost, 2.5 pounds of kiwi and 3 pounds of cherries:
Total cost, xx pounds of kiwi and yy pounds of cherries:
Total cost, 2.5 pounds of kiwi: 2.5 * $4.50 = $<<2.5*4.5=11.25>>11.25
Total cost, 3 pounds of cherries: 3 * $3.25 = $<<3*3.25=9.75>>9.75
Total cost, 2.5 pounds of kiwi and 3 pounds of cherries: $11.25 + $9.75 = $<<11.25+9.75=21>>21
Total cost, xx pounds of kiwi: xx * $4.50 = $4.50xx
Total cost, yy pounds of cherries: yy * $3.25 = $3.25yy
Total cost, xx pounds of kiwi and yy pounds of cherries: $4.50xx + $3.25yy.