Answer: 2x+4=10
Step-by-step explanation:
because each notebook would cost $3 so 2 x 3 = 6 +4=10
D. 50 mph
Going upstream takes longer because of the flow of the water
Answer: 24
The area is length times width, or in this case: 6 times 4.
First reduce the fraction so your equation looks like this:
2/27=x/36
Now cross multiply to simplify
72=27x
Now change sides
27x=72
Now divide both sides by 27
X= 8/3
Now you are left with your answer:
x= 8/3
Hope this helps! :3
Answer:
47.5%
Step-by-step explanation:
Find the z-scores:
z = (x − μ) / σ
z₁ = (300 − 400) / 50 = -2
z₂ = (400 − 400) / 50 = 0
300 is 2 standard deviations below the mean, and 400 is 0 standard deviations from the mean.
From the empirical rule, 95% of a normal distribution is between -2 and +2 standard deviations. Since normal distributions are symmetrical, that means half of that is between -2 and 0 standard deviations.
95% / 2 = 47.5%
