Given:
Cost of two donuts and three cookies = $3.30
Cost of five donuts and two cookies = $4.95
To find:
The cost of each donut.
Solution:
Let x be the cost of each donut and y be the cost of each cookie.
Cost of two donuts and three cookies = $3.30
...(i)
Cost of five donuts and two cookies = $4.95
...(ii)
Multiply equation (i) by 2.
...(iii)
Multiply equation (ii) by 3.
...(iv)
Subtracting (iii) from (iv), we get
Divide both sides by 11.
Therefore, the cost of each donut is $0.75.
Ratio and proportion
15 pages/2hours=150 pages/x hours
cross multiply
15x= 300
x-20
it will take Amanda 20 hours to read the entire book
The quantity of water the farming conglomerate would use 17 years from now is 65,708.11.
<h3>What is the amount of water that would be used 17 years from now?</h3>
The formula for calculating the amount of water that would be needed 1 years from now:
FV = P (1 + r)^N
- FV = Future value
- P = Present value
- R = interest rate
- N = number of years
13000 x 1.1^17 = 65,708.11
To learn more about future value, please check: brainly.com/question/18760477
The table models an exponential relationship, and the equation of the table is 
<h3>How to analyze the table of values?</h3>
The table of values is given as:
x 0 1 2 3 4
y 4 2 1 1/2 1/4
The above table shows an exponential model
An exponential model is represented as:
When x = 0 and y = 4, we have
Evaluate
a = 4
When x = 1 and y = 2, we have
Evaluate
Substitute 4 for a
4b = 2
Divide both sides by 4
b = 1/2
Substitute 4 for a and 1/2 for b in
Hence, the equation of the table is
Read more about exponential models at:
brainly.com/question/11464095
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your almost right check once and you wil get especially alternate angles
