Answer:
z = 10
Step-by-step explanation:
Distribute 2 to the terms in the parentheses:
2(2z + 5) = 50
4z + 10 = 50
Subtract 10 from both sides
4z = 40
Divide each side by 4
z = 10
So, the answer is z = 10
16/9 because (3/4)^-2 simplified is 16/9
Answer:
About 6 athletes.
Step-by-step explanation:
We are concerned only with the percent of athletes that are above one standard deviation.
Between one standard deviation and two standard deviations, there is 13.6% of the athletes.
From 2 to 3, there is 2.1%. Above 3, there is 0.2%.
The sum of those percentages is 15.9% of 40 = 0.159 · 40 = 6.36 or about 6 athletes.
Hope this helps.
Hey!
So, the denominator tells us how many pieces there are in the pizza. (4)
4 × 1 = 4 --- That's not enough for 11 people, if each person is supposed to get 1 slice.
4 × 2 = 8 --- Still Not Enough.
4 × 3 = 12 --- This is more than enough. 11 people can each have 1 slice.
So, your answer is: Cyrus should order 3 pizzas.
