It’s c I think sorry if I’m wrong, I did this lesson long time ago
Answer:
I also don't know the answer to this question
Answer:
63 gallons.
Step-by-step explanation:
If 30% of water is used outdoors, that leaves 70% to be used indoors. Since an average person uses 90 gallons, all we need to do is fine 70% of 90 gallons. To do this, we have to multiply 90 by 0.7:
90 * 0.7 = 63
In conclusion, 63 gallons of water are used indoors.
Step-by-step explanation:
v=u+at
at=v-u
a=v-u/t
Answer:
z = - 0.33
Step-by-step explanation:
Given that:
Mean (μ) = 73, standard deviation (σ) = 3.0
Z score is a measure in statistics to determine the number of standard deviation a value is above or below the mean of what is measured. If the value is above the mean it is positive but if it is below the mean it is negative. It is given by the equation:
To calculate z-score for Umaima's exam grade, we need to calculate the z score of 72
For x = 72, the z score is:
z = - 0.33