Answer: price of a senior citizen ticket = $3.71
Let the price of a child ticket = $4.43
Step-by-step explanation:
Let the price of a senior citizen ticket = x
Let the price of a child ticket = y
On the first day of ticket sales the school sold 22 senior citizen tickets and 10 child tickets for a total of $126. This will be:
22x + 10y = 126 ............ i
The school took in $51 on the second day by selling 3 senior citizen tickets and 9 child tickets. This will be:
3x + 9y = 51 ........... ii
22x + 10y = 126 ............ i
3x + 9y = 51 ........... ii
Multiply equation i by 3
Multiply equation ii by 22
66x + 30y = 378 ....... iii
66x + 198y = 1122 ........ iv
Subtract iii from iv
168y = 744
y = 744/168
y = 4.43
Since 3x + 9y = 51
3x + 9(4.43) = 51
3x + 39.87 = 51
3x = 51 - 39.87
3x = 11.13
x = 11.13/3
x = 3.71
The total square footage is 18*12+24*16=600. Buying four tiles at $17 for 4 square feet is the cheapest. The minimum cost is therefore 600/4*$17=$2550.
Try this option:
for x²+9x+2=0 D=81-8=73
answer: x≈ -8.772 or x= -0.228
Hello there!
As I am sure you probably know, area of a rectangle is the length x width. In this shape, I just divided each section into a rectangle.
Your answer will be 302cm.
Look at the way bottom area. If you just make that a 21cm x 10cm rectangle, then you have an area of 210cm.
Next, move up to the little "neck". It is 8cm tall, but we don't know how wide. You can see that on one side of it, there is 8cm of wall, and on the other, another 8cm. As you see from the bottom-most dimension, you will see that the total width for the shape is 21cm. Using this data, we can figure that the width of the "neck" is 5cm. So, 5cm x 8cm = 40cm.
Now, we have our last rectangle. It is 4cm tall, and by using our data from the last problem, we know that the width will be 13cm across (5cm+8cm). Simply multiply 13cm x 4cm, and then you will find a area of 52cm.
Finally, just add up your measurements. 210cm + 40cm + 52cm = 302cm.
I hope I haven't made you bored out of your mind... I hope you can use this to solve any other problems that come up in the future!
Brady
Answer:
I think it's 687.5
Step-by-step explanation:
(125 × 11) ÷ 2