The cost of a senior citizen ticket is $15 and the cost of a student ticket is $12.
How did I get this?
We know that 6 citizen tickets and 7 student stickers sold for $174 the first day. And 10 citizen tickets and 14 student tickets sold for $318 the second day.
1. create two equations out of this: C= citizen cost per ticket and S = student cost per ticket.
6C + 7S = $174
10C + 14S = $318
2. Use process of elimination. Multiply the first equation by 2 because we want two variables to cancel out.
-12C - 14S = -$348
10C + 14S = $318
Combine like terms.
-2C = $30
Divide by -2 on both sides. The left side cancels out.
C = $30/-2
C = -$15 (In this case the negative doesn't matter)
C = $15 (cost of senior citizen ticket)
Plug the value of C into any of the two equations so we can get the value of S.
6($15) + 7S = $174
Distribute the 6 into the parenthesis.
$90 + 7S = $174
Subtract both sides by $90 and the left side will cancel out.
7S = $84
Divide both sides by 7.
S = $12
Student ticket: $12
Senior citizen ticket: $15
Answer:
$126
Step-by-step explanation:
90 x 1.40 = $126 = 40% profit of cost.
126 / 0.90 = $140 original price before 10%
= $126 discounted price
proof 140 x 0.10 = $14
140 - 14 = $126 the price wanted.
Answer:
y=-2/5x+3
Step-by-step explanation:
y+7=-2/5(x-10)
step 1:
-2/5(x-10)= -2/5x-4
step 2:
y+7=-2/5x-4+7
step 3:
y=-2/5x+3
there is 5 roots hope it helps
-5 4/5 because it is less than -5
