Answer:
x = (10 - b) / a
Step-by-step explanation:
ax + b = 10
ax = 10 - b
x = (10 - b) / a
Answer:
78 emails
Step-by-step explanation:
Given
Represent sent emails with x and received with y.
So, we have:
-- First statement
-- Second statement
Required
Determine the number of emails received (y)
Make x the subject in
Substitute 114 - y for x in
Open bracket
Collect Like Terms
Divide by 3
Answer:
y= 2
Step-by-step explanation:
3(2)+6(2)=18
6+12=18
Volume of the flour = 2 3/4
Volume of the sugar = 13/8
Volume of the butter = 1/2
Total volume
2 3/4 + 13/8 + 1/2
11/4 + 13/8 + 1/2
(22+13+4) / 8
39 / 8
4 7/8
Answer:
P(x< 18) = 0.986
Step-by-step explanation:
Step 1: find the z-score using the formula, z = (x - µ)/σ
Where,
x = randomly chosen values = 18
µ = mean = 7
σ = standard deviation = 5
Proportion of the population that is less than 18 = P(x < 18)
Plug in the values into z = (x - µ)/σ, to get z-score.
z = (18 - 7)/5
z = 11/5 = 2.2
Step 2: Find P(x< 18) = P (z<2.2) using z-table.
The probability that corresponds with z-score calculated is 0.986.
Therefore,
P(x< 18) = 0.986
