Answer:
y = 9x - 5
Step-by-step explanation:
The slope is already given, so we just need to find the y-intercept.
Plug in 9 for m, 1 for x, and 4 for y in the equation y = mx + b.
4 = 9(1) + b
b = -5
Now that we know the y-intercept, we can construct the equation of the line.
y = 9x - 5
We are given with
n = 1000
p = 0.78
Samples = 10
Condition = at most 7 have one or two social media accounts
We can use combinations to solve the problem
P = ∑10Ci (0.78)^i (1-0.78)^(10-i)/ 1000C10 from i from 0 to 7
Solve for P
Answer:
12
Step-by-step explanation:
since 36 is double 18, you would then double 6. what you do to one side, you do to the other:)
In order to isolate w, you would simply divide both sides by lh because divisionis the oppositeof multiplication which is currentlybeing done. After doing this, your answer is w = v/lh.
I hope this helps!
Answer:
250 cards
Step-by-step explanation:
Let the number of baseball cards he originally had be x.
He sold 20% of the baseball cards after week one. This means that after week one the number of cards he had was:
x - (20/100 * x) = x - 0.2x = 0.8x
During week two he bought 20% more cards than he had after week one. This means that after week two, he had:
0.8x + (20/100 * 0.8x)
= 0.8x + (0.2 * 0.8x)
= 0.8x + 0.16x = 0.96x
He now has 10 fewer cards. This means that:
x - 10 = 0.96x
Collecting like terms:
x - 0.96x = 10
0.04x = 10
=> x = 10/0.04 = 250
He had 250 cards originally.
