Alberts bank account decreased by a total of 193 over a period of 12 days. what was the average daily decrease in his account?

Mathematics

1 answer:

Tems11 [23]2 years ago

7 0

Answer:

16.08

Step-by-step explanation:

IF Alberts bank account decreased by a total of 193 over a period of 12 days, then;

193 = 12days

To determine the average daily decrease in his account, thwn;

x = 1 day

Divide both equations

193/x = 12/1

12x = 193

x = 193/12

x = 16.08

Hence the average daily decrease in his account is 16.08

You might be interested in

What is the perimeter , in feet , of the polygon 15,22,10,18,14,5,5,16

Alinara [238K]

You just add all the sides together for perimeter
the answer is105

5 0

3 years ago

some psychologists believe that a genius should be defined as anyone having an IQ over 140. If IQ scores are normally distribute

denis23 [38]

Answer:

61,239,550

Step-by-step explanation:

We let the random variable X denote the IQ scores. This would imply that X is normal with a mean of 100 and standard deviation of 17. We proceed to determine the probability that an individual chosen at random from the population would be a genius, that is;

Pr( X>140)

The next step is to evaluate the z-score associated with the IQ score of 140 by standardizing the random variable X;

$Pr(X>140)=Pr(Z>\frac{140-100}{17})=Pr(Z>2.3529)$