It cost Jill 35 cents to mail a postcard and 50 cents to mail a letter. She sent either a postcard or a letter to each of 18 people and spent a total of $7.35. Let x represent the number of postcards that she wrote. a) Write an algebraic expression representing the total cost of the postcards: Blank 1 (Please enter the algebraic expression only. Do not simplify.) b) Write an algebraic expression representing the number letters she wrote: Blank 2 (Please enter the algebraic expression only. Do not simplify.) c) Write an algebraic expression representing the total cost of the letters: Blank 3 (Please enter the algebraic expression only. Do not simplify.) d) Write an equation showing the sum of the cost of the postcards and letters is $7.35: Blank 4 (Please enter the equation only. Do not simplify.) e) If you solve the equation in part d, then how many postcards did Jill write? Blank 5 (Please enter number only.)
It cost Jill 35 cents to mail a postcard and 50 cents to mail a letter. She sent either a postcard or a letter to each of 18 people and spent a total of $7.35.
Let x represent the number of postcards that she wrote.
a) Write an algebraic expression representing the total cost of the postcards: Blank 1
(Please enter the algebraic expression only. Do not simplify.)
b) Write an algebraic expression representing the number letters she wrote: Blank 2
(Please enter the algebraic expression only. Do not simplify.)
c) Write an algebraic expression representing the total cost of the letters: Blank 3
(Please enter the algebraic expression only. Do not simplify.)
d) Write an equation showing the sum of the cost of the postcards and letters is $7.35: Blank 4
(Please enter the equation only. Do not simplify.)
e) If you solve the equation in part d, then how many postcards did Jill write? Blank 5
(Please enter number only.)
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