Answer:
x = (32y - 3)/6
Step-by-step explanation:
1. Multiply both sides of equation by 2y
6x + 3 = 32y
2. Isolate 6x
6x = 32y - 3
3. Isolate x
x = (32y - 3)/6
Answer: The required lifetime value is 11.27.
Step-by-step explanation:
Since we have given that
Mean value = 11 hours
Standard deviation = 1 hour
The total lifetime of all batteries in a package exceeds that value for only 5% of all packages.
So, α = 0.95, z= 1.645
n = 9
So, the lifetime value would be
Hence, the required lifetime value is 11.27.
X= # of people who attended the movie
Numerator= # of people under 30
Denominator= total # of people
60/100 = 1200/x
Then we cross multiply
60x = 120000
x = 2,000
Final answer= 2,000 people attended the theater
Answer:
D
Step-by-step explanation:
The best way to work with fractions is to turn them into decimals by dividing the numerator by the denominator.
<span><span>0.1n</span>=89.5</span>
<span /><span>Step 1: Divide both sides by 0.1.</span>
<span><u>Answer: </u><span><span>n=89</span></span></span>
<span><span><span /><span><span><span><span>(10)</span><span>(3)</span></span>n</span>=630</span></span></span>
<span><span><span /><span><span>Step 1: Simplify both sides of the equation.</span></span></span></span>
<span><span><span /></span></span>30n= 630
step1: divide both sides by 30.
<u>Answer</u>:<u /> n= 21
