Add all the x up and then you add all the ones that doesn't have an x then divide those 2 together.
×=46
54
Answer:
92.
Step-by-step explanation:
By proportion the mass of zinc = (345/ 15) * 4
= 92.
Answer:
The probability distribution for x:"number of children per family for this income group" is:
Step-by-step explanation:
With the information given we have the relative frequencies of each category.
We know:
40 new accounts for: 100 customer calls
10,000 new accounts for: x customer calls.
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40 : 10,000 = 100 : x
x = (100 · 10,000 ) : 40 = 25,000
Answer: 25,000 customer calls were made.
Answer:
r = 7
Step-by-step explanation:
To solve this, we can plug in a pair of x and y values and solve for r.
y = rx | Plug in a pair
42 = r*6 | Now divide both sides by 6
7 = r.
We can test this by plugging in r with a pair.
y = (7)x
77 = 7*11, 77 = 77, This equation is correct.
