Answer:
-3k+10
Step-by-step explanation:
Answer:
Decimal Form: 2.5
Step-by-step explanation:
1) You have to Subtract 2x from both sides.
4x − 2x ≥ 5
2) Next, Simplify 4x−2x to 2x.
2x ≥ 5
3) Lastly, Divide both sides by 2 and you're done!
Decimal Form: 2.5
Step-by-step explanation:
Ashley is the utilities manager at a paper mill. She's watching over one of her holding tanks. It takes 4/5 of an hour to fill 1/2 the tank
First we convert 4/5 of an hour in to
minutes
4/5 6048 minutes
In 48 minutes ----> 1/2 tank filled
In 60 minutes ----> 60 * 1/2 divide by 48
30 divide by 48=\frac{30}{48}
48
30
All 15%
Simplify the fraction by dividing top and
bottom by 6
30/48 = 5/8
Answer:
The interval that contains the middle 68% of the heights is from 52 inches to 60 inches.
Step-by-step explanation:
The empirical rule states that, for a normally distributed variable:
The middle 68% of the measures are within 1 standard deviation of the mean.
The middle 95% of the mesures are within 2 standard deviations of the mean.
The middle 99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Normally distributed with mean 56 inches and standard deviation 4 inches.
So the interval that contains the middle 68% of the heights is from 52 inches to 60 inches.