Answer:
The price of the admission is 15.
Step-by-step explanation:
From the information given, you can write the following equations:
a+3e=45 (1)
a+5e=65 (2), where:
a is the admission cost
e is the exhibition cost
First, you can solve for a in (1):
a=45-3e (3)
Second, you can replace (3) in (2):
45-3e+5e=65
45+2e=65
2e=65-45
2e=20
e=20/2
e=10
Finally, you can replace the value of e in (3):
a=45-3e
a=45-3(10)
a=45-30
a=15
According to this, the price of the admission is 15.
Answer:
the answer is .11
Step-by-step explanation:
3.24÷30=.108
They provide all the needed data...
n + d + q = $3.00 (they provide a ratio)
3:2:1 = $3.00 (let's enter the value of each)
3(.05) + 2(.10) + 1(.25)
.15 + .20 + .25
.60 = is the value of the ratio
let's divide the $3.00 by the .60 to get 5
let's now multiply the value of 5 to the ratio and solve the question...
3(5): 2(5): 1(5)
15 nickels
10 dimes
5 quarters
you would have 9.375 pieces or 75/8 pieces, depends on how you look at it
Answer:
The correct choices are 2,3,5
Step-by-step explanation:
We can write an exponential decay function for this problem
y= ab^x
where a is the initial value
b is 1 - decay rate
x is the time
y= 70000 (1-.5) ^x where x is the number of 4 hour periods
y = 70000 (.5)^x
The half life is every 4 hours
24 hours is 24/4 = 6
y = 70000 (.5)^6
y = 1093.75 at 24 hours