Y2-y1/x2-x1
121.5-58.5/27-13
63/14
$4.5 an hour.
Answer:
12
Step-by-step explanation:
There are 2 yellow out of 10.
2/10 = 1/5
1/5 of the total number is yellow.
1/5 of 60 =
= 1/5 * 60
= 12
Answer: 12
Answer:
Standard score z=0.07
Step-by-step explanation:
The z-score, or standard score, represents an equivalent value for X but in the standard normal distribution, where μ=0 and σ=1.
For X=28.3 in a normal distribution with μ=26.3 and σ=28.1, the standard score can be calculated as:
This value is 0.07 standard deviations right to the mean.
In the picture attached, we have located the z-score.
Answer:
Speed of sound is 340 meter per second.
Step-by-step explanation:
Let the speed of sound = x meter per second.
It is given that,
The new mode of travel has the speed 170 meter per second, which is 50% less than the speed of sound.
So, we get,
x - 50%x = 170
i.e. x - 0.5x = 170
i.e. 0.5x = 170
i.e. x = 340 meter per second
Hence, the speed of sound is 340 meter per second.
Answer:
A
Step-by-step explanation:
