SOLUTION: the college bookstore sells two types of graphing calculators. One calculator sells for $79 and the other for $46. iF THE BOOKSTORE SOLD 24 calculators for a total of $1302.00 ho

Algebra ->  Rational-functions -> SOLUTION: the college bookstore sells two types of graphing calculators. One calculator sells for $79 and the other for $46. iF THE BOOKSTORE SOLD 24 calculators for a total of $1302.00 ho      Log On


   

Question 316562: the college bookstore sells two types of graphing calculators. One calculator sells for $79 and the other for $46. iF THE BOOKSTORE SOLD 24 calculators for a total of $1302.00 how many of each were sold.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let a = number of $79 ones sold
Let b = number of $46 ones sold
given:
(1) a+%2B+b+=+24
(2) 79a+%2B+46b+=+1302
Multiply both sides of (1) by 46 and
subtract (1) from (2)
(2) 79a+%2B+46b+=+1302
(1) -46a+-+46b+=+-1104
+33a+=+198
a+=+6
and
a+%2B+b+=+24
6+%2B+b+=+24
b+=+18
6 $79 calculators and 18 $46 calculators were sold