Answer:
30.55% increase
Step-by-step explanation:
Hope this helps!
Given:
tickets for adults - 25
tickets for kids - 15
initial cost - 450
increase in tickets for kids to - 18
cost after increase - 480
let x be number of adults and y be number of kids
25x + 15y = 450
25x + 18y = 480
subtraction:
25x + 15y = 450
<u>-25x - 18y = -480</u>
0 - 3y = - 30
y = -30/-3
y = 10
There are 10 kids.
25x + 15y = 450
25x + 15(10) = 450
25x + 150 = 450
25x = 450 - 150
25x = 300
x = 300/25
x = 12
There are 12 adults.
All in all there are 12 adults and 10 kids.
to check:
25x + 15y = 450
25(12) + 15(10) = 450
300 + 150 = 450
450 = 450
25x + 18y = 480
25(12) + 18(10) = 480
300 + 180 = 480
480 = 480
Answer:
$121.95
Step-by-step explanation:
First, we need to change 45% into a decimal. To do that, move the decimal point two spaces back, and we will have 0.45.
Multiply that by the original price $84.10
$84.10 x 0.45 = 37.845
Then add 84.10 with 37.845
This adds up to $121.945, which you can round to $121.95
Answer:
5/648 xy2z
Step-by-step explanation:
The answer is the third one
Y=1/3x-9
