The answer should be < because 602163 is smaller than 620163
Answer:
Step-by-step explanation:
Pressure p = force F/ area A
P = F/A
F = 100N and A = 4m^2
P = 100/4
P = 25N/m^2
Answer
12. x = 15, y = 21
13. x = 10, M = 37, N = 84, P =59
14. x = 19, R = 43, S = 20, T = 117
15. A = 21, B = 125, C = 34
16. J = 48, K = 57, L = 75
Explanation
12. 6x - 11 + x + 5 + 81 = 180
7x + 75 = 180
7x = 105
x = 15
4y - 18 + y + 14 + 6*15 - 11 = 180
5y + 75 = 180
5y = 105
y = 21
13. 4x - 3 + 9x - 6 + 6x - 1 = 180
19x - 10 = 180
19x = 190
x = 10
M = 4*10 - 3 = 37
N = 9*10 - 6 = 84
P = 6*10 - 1 = 59
14. R = 2x + 5
S = x + 1
T = 7x - 16
2x + 5 + x + 1 + 7x - 16 = 180
10x - 10 = 180
10x = 190
x = 19
R = 2*19 + 5 = 43
S = 19 + 1 = 20
T = 7*19 -16
15. A = C -13
B = 4C - 11
c - 13 + 4c - 11 + c = 180
6c -24 = 180
6c = 2-4
C = 34
A = 34 - 13 = 21
B = 4*34 - 11 = 125
16. K = J + 9
L = 2J -21
j + 9 + 2j - 21 + j = 180
4j -12 = 180
4j = 192
J = 48
K = 48 + 9 = 57
L = 2*48 -21 = 75
Answer: The lengths of the garden are 57.32 feet and 22.68 feet (approximately)
Step-by-step explanation: The area has been given as 1300 which means,
Area = L x W
1300 = L x W ———(1)
Also the perimeter has been given as 160, hence we also have
Perimeter = 2(L + W)
160 = 2(L + W)
80 = L + W ———(2)
From equation (2), make L the subject of the equation
L = 80 - W
Substitute for the value of L into equation (1)
1300 = L x W
1300 = (80 - W) x W
1300 = 80W - W^2
Rearranging the equation we now have;
W^2 - 80W + 1300 = 0
Since we cannot factorize we shall apply the quadratic equation formula to solve for W. Please refer to the attachment for details of this.
Having calculated the value of W to be either 57.32 or 22.68, we can now find the value of L as follows;
Substitute for the value of W into equation (1)
1300 = L x W
1300 = L x 57.32
Divide both sides of the equation by 57.32
22.68 = L.
(Note that if we take the other value of W which is 22.68, the value of L shall be 57.32)
Since the area of the rectangular garden must be AT LEAST 1300 square feet we shall use the exact values for;
Length = 57.32 feet
Width = 22.68 feet
Do the opposite of division which is multiplication. 2.6x2=5.2
I hope I did it correctly and that it benefits you ^^