So 3150÷7=450 and then multiply 450×3= 1350. So 1350 people who jog regularly
Answer:
1.63 Kilograms
Step-by-step explanation:
I started by finding out what the roast beef weighed. Then I added 740, 520, and 370 (what the roast beef weighs). I can work that way because they are all in grams. The total off all that equals 1630 grams. Then I converted that to kilograms. Which will end up giving you 1.63 kilograms.
The answer is in the attachment
Answer:
The expected value of playing the game is -$7.
Bill should not play this game.
Step-by-step explanation:
The probability distribution of gain and loss is as follows:
X P (X)
-$20 0.30
-$40 0.20
$50 0.10
$5 0.40
Total 1.00
The expected value of a probability distribution is given by:

Compute the expected value of playing the game of chance as follows:


The expected value of playing the game is -$7.
The expected value of the game suggests that Bill will incur a loss of $7 if he plays.
So, it is safe not to play the game.
In a common log we have an unwritten base of 10. That is, filling in our equation correctly, we have

. Logs and exponential functions are opposites of one another, so we can rewrite that log as an exponential function, like this:

. Doing that math on our calculators we get that x is 31622776.60