Answer: -39c-12
Step-by-step explanation:
Answer:
The percentage error is;
A. 1.79%
Step-by-step explanation:
The given parameters of the rectangular field are;
The length of the field = 62 feet
The width of the field = 25 feet
The width of the gate of the fencing = 9 feet
The actual length of fencing Pete used to fence the field, P₁ = 168 feet
The length of the fencing required in the design, 'P₂' is given as follows;
P₂ = 62 ft. + 62 ft. + 25 ft. + 25 ft. - 9 ft. = 165 ft.
The difference between the actual and design length of fence measurements = P₁ - P₂ = 168 ft. - 165 ft. = 3 ft.
The percentage error in the design measurements compared to the actual fence material used, % Error, is given as follows;
Therefore;
∴ The percentage error of Pete's design measurements compared to the actual fence material used, % Error ≈ 1.79 %.
Answer:
The number of adults, a, is 300, and the number of kids, k, is 200.
Step-by-step explanation:
k + a = 500 (1)
3k + 10a = 3,600 (2)
Multiply both sides of equation (1) by -3.
(k + a) • -3 = 500 • -3
-3k − 3a = -1,500
Now, add this equation to equation (2).
3k + 10a = 3,600
+ -3k − 3a = -1,500
7a = 2,100
a = 300
Substitute the value of a into equation (1).
k + a = 500
k + 300 = 500
k = 500 – 300
k = 200
In the system of equations, a represents the number of adults and k represents the number of kids who visited the carnival. The number of adults, a, is 300, and the number of kids, k, is 200.
B. If you were to solve for a, the a values would be 12 and 16 in the equation.
The solution is negative.