Answer:
1. 18
2. 8
Step-by-step explanation:
the mean is calculated by:
total / number of values
the current total is
10 + 14 + 8 + 16 + 12 = 60
now when we add another number there will be 6 numbers and we want the mean to be 13 so:
total / 6 = 13
total = 13 × 6
total = 78
but our current total is 60
so the missing number is 78 - 60 = 18
for part 2:
if we remove a number there will be 5 values and we want the mean to be 14 so:
total / 5 = 14
total = 14 × 5
total = 70
but we have the total of 6 numbers as 78 so we have to remove 78 - 70 = 8
Answer:
is the required range.
Step-by-step explanation:
We have been given a function:
The range of sin x is
multiply -5 in each term of the above equation.
Hence, the required range is:
replace -5sinx by y so, we get:
Answer:
70% in favor of building a new playground
<em>3500 (</em><em>in favor</em><em>) + 1500 (</em><em>against it</em><em>) = 5000 (</em><em>total number votes</em><em>)</em>
<em />
<em>3500 (</em><em>in favor</em><em>) 1500 (</em><em>against it</em><em>)</em>
<em> ------------------- = 0.7 / 70% ------------------- =0.3 / 30%</em>
<em>5000 (</em><em>total</em><em>) 5000 (</em><em>total</em><em>) </em>
Answer: 5/12 of the whole pizza
So we start we the whole pizza = 1
Then he ate 3/8:
1 - 3/8
And then 2/3 of what was left:
2/3(1 - 3/8)
2/3 - 1/4
8/12 - 3/12
5/12
7 divided by -1 equals -7