Initial amount: s.
Then, after having spent 7% of his savings, the amount left is 0.93s = <span>£771.90.
Dividing both sides by 0.93, we get s = </span><span>£830.
Check: What is 7% of </span>£830? 0.07(£830) = £58.1. If we subtract that from £830, do we get <span>£771.90? Try it.</span>
Step-by-step explanation:
911
Answer:
0.762 = 76.2% probability that this shipment is accepted
Step-by-step explanation:
For each pen, there are only two possible outcomes. Either it is defective, or it is not. The probability of a pen being defective is independent from other pens. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
17 randomly selected pens
This means that
(a) Find the probability that this shipment is accepted if 10% of the total shipment is defective. (Use 3 decimal places.)
This is when . So
0.762 = 76.2% probability that this shipment is accepted
Answer:
First option / a - y = 2x - 2
Step-by-step explanation:
We can tell it'll either be the first one or the second one as the line intercepts the y-axis at -2, so the b will be -2.
The line goes up 2 and over 1, so the slope will be 2. Putting all the pieces together gives us the first option of y = 2x - 2.
Answer:
7x+6y=2
Step-by-step explanation:
All you have to do is add both of the equations together.