Out of the choices given, the following equation " 14+3x-7x+4-4x" is always true. The correct answer will be A.
Answer:
- Sand in small bag = 2x = 2(7.5) = 15 kg
- Sand in medium bag = 3x = 3(7.5) = 22.5 kg
- Sand in a large bag = 7x = 7(7.5) = 52.5 kg
Step-by-step explanation:
Total weight = 90 kg
As 90 kg has been distributed in 3 bags in the ratio 2:3:7
Let the small bag contains = 2x
Let the medium bag contains = 3x
Let the big bag contains = 7x
so the equation becomes
2x+3x+7x = 90
12x = 90
x = 90/12
x = 7.5
Thus,
- Sand in small bag = 2x = 2(7.5) = 15 kg
- Sand in medium bag = 3x = 3(7.5) = 22.5 kg
- Sand in a large bag = 7x = 7(7.5) = 52.5 kg
<u>SOLUTION CHECK</u>
15+22.5+52.5=90 kg
Solution :
Faulty electrical connects = P(A) = 0.80
Mechanical defects = P(B) = 0.92
Mechanical defects are related to loose keys = P(C/B) = 0.27
Improper assembly = P(D/B) = 0.73
Defective wires = P(E/A) = 0.35
Improper connections = P(F/A) = 0.13
Poorly welded wires = P(G/A) = 0.52
Now, the probability due to loose keys = 0.27 x 0.92 = 0.2484
Improperly connected = 0.13 x 0.80 = 0.1040
Poorly welded wires = 0.52 x 0.80 = 0.4160
So, the probability that a failure is due to improperly connected or poorly welded wires = 0.1040 + 0.4160
= 0.5200
I believe it is 56.55 inches I could be wrong but I tried my best
Driving 40 miles in 2 hours is the answer
