Variables:
x: price/drink
y: price/bag of popcorn
system of equations:
72.50=5x+5y
163.50=15x+5y
solve:
(72.50=5x+5y)-1
163.50=15x+5y
-72.50=-5x-5y
----------------------
91=10x
x=9.1
163.50=15(9.1)+5y
163.50=136.5+5y
27=5y
y=5.4
One drink costs 9 dollars and 10 cents
5x
just think of it as -4 + 9 because the variables are the same
Answer:
The expected number of children to attend the concert is 143.
Step-by-step explanation:
The total guest expected to attend the concert = 200
Here, Ratio of Adults: Children = 2: 5
Let us assume the common factor in the given ratio = m
So, the expected number of adults to attend the concert = 2 m
Also, the expected number of children to attend the concert = 5 m
Number of (Adults + Children) attending concert = 200
⇒ 2 m + 5 m = 200
or, 7 m = 200
or, m = 200 /7 = 28.57
or, m = 28.57
Now, the expected number of children to attend = 5 m
= 5 x 28.57 = 142.85 ≈ 143
Hence, the expected number of children to attend the concert is 143.
Answer:
275.248 ft
Step-by-step explanation:
this is a trigonometry question, so we first draw a triangle with height 55 and angles 11.3 (degrees) and 78.7 (degrees). tan(11.3)=55/base, so the base would be 275.248 ft.
Answer:
sorry man I can't help you
Step-by-step explanation:
this is my last few hours of brainly premium