Question

At the city museum, child admission is$5.50 and adult admission is $9.10. On Wednesday, 134 tickets were sold for a total sales of $1032.20. How many adult tickets were sold that day?

Answer 1

a + c = 134----> c = 134 - a
9.10a + 5.50c = 1032.20

now sub 134 - a in for c into the second equation..then just solve for a

Answer 2

But what's a?

Answer 3

a = adult tickets and c = childrens tickets
let me set it up for you...
9.10a + 5.50(134 - a) = 1032.20

can you solve it now ?

Answer 4

a=82?

Answer 5

Can you help me set up another problem?

Answer 6

Jim's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Jim $4.25 per pound, and type B coffee costs $5.30 per pound. This month's blend used three times as many pounds of type B coffee as type A, for a total cost of $705.25. How many pounds of type A coffee were used?

Answer 7

9.10a + 5.5(134 - a) = 1032.20
9.10a + 737 - 5.5a = 1032.20
9.10a - 5.5a = 1032.20 - 737
3.6a = 295.20
a = 295.20/3.6
a = 82...you got this one right
=================
4.25a + 5.30b = 705.25
3a = b

4.25a + 5.3(3a) = 705.25
4.25a + 15.9a = 705.25
20.15a = 705.25
a = 705.25/20.15
a = 35

3a = b
3(35) = b
105 = b

check..
4.25a + 5.30b = 705.25
4.25(35) + 5.30(105) = 705.25
148.75 + 556.50 = 705.25
705.25 = 705.25 (correct)

type A coffee = 35....type B coffee = 105