1.7 : 22.3
17 : 223 is the ratio. Times 10 throughout
Answer:
2x+15=145........ vertically Opposite
2x=145-15
2x=130
x=130/2
65
x=65
Answer:
Y= -3x + 4
Step-by-step explanation:
The answer is x equals 1/2.
To find the specification limit such that only 0.5% of the bulbs will not exceed this limit we proceed as follows;
From the z-table, a z-score of -2.57 cuts off 0.005 in the left tail; given the formula for z-score
(x-μ)/σ
we shall have:
(x-5000)/50=-2.57
solving for x we get:
x-5000=-128.5
x=-128.5+5000
x=4871.50
