An amusement park sells children and adult tickets at a ratio of 8 to 1. On Saturday they sold 147 more child tickets then adult
1 answer:
let the number of adult tickets be x and the number of children tickets be y
x:y = 8:1
On Saturday, x = 147 + y
(147+y):y = 8:1
[tex] \frac{147}{y} + [tex] \frac{y}{y} = 8 + 1
[tex] \frac{147}{y} = 8
147 = 8y
∴y = 88
x = 147 + 88
∴ x = 235
so the no of tickets sold on saturday = 235 + 88 = 323
please mark as brainliest
You might be interested in
$4 is the original price of the jar consisting of peanut butter so therefor it = 100%. It's for sale at $3.60, so we divide $4 by 100% so we get the percentage for each cent and then we times it by 3.60 to get the percentage for $3.60 which is 90%. Now we subtract 90% from 100% to get the discounted percentage for 40cents :)
Answer: The mean and standard deviation are 567.2 and 89.88 resp.
Step-by-step explanation:
Since we have given that
For 370 parts per million = 7% = 0.07
For 440 parts per million = 10% = 0.10
For 550 parts per million = 49% = 0.49
For 670 parts per million = 34% = 0.34
So, Mean of the carbon dioxide atmosphere for these trees would be
And
So, Variance would be
So, the standard deviation would be
Hence, the mean and standard deviation are 567.2 and 89.88 resp.