Answer:
50%
Step-by-step explanation:
Five out of 10 is 50%
The answer to your question would be 7/12
I hope I answered your question today!
Answer:97 rods
Step-by-step explanation:
The number of steel rods for 95% confidence level


E=3

Substituting values


Thus 97 rods is tested
-2x + 6y = -34
-x + 3y = -17
x = 3y +17
Sub this into 1st eqn
5(3y + 17) + 2y = 21
15y + 85 + 2y =21
17y = -64
y = -3.7647 (to 5 sig. fig.)
y = -3.8 (to nearest tenth)
Sub y = -3.7647 into 2nd eqn
x = 3(-3.7647) +17
x = 5.7 (to nearest tenth)