Answer:
a) He substituted 0.8 instead of 0.08.
b) $264
Step-by-step explanation:
From the question, the principal is p= $275, the rate is r=0.08, and the time is t=12 years.
We substitute into the formula to get:


a) The mistake is that, he substituted 0.8 instead of 0.08.
b) The correct amount is $264
Using the probability concept, the number of blue balls you need to add is:
D) 5.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
A probability of 0.5 is reached if the number of red balls is the same as the number of blue balls. Current the difference is of 7 - 2 = 5, hence 5 blue balls must be added.
More can be learned about probabilities at brainly.com/question/14398287
#SPJ1
To solve this, you must subtract .56 from -1.64. Then divide that by -5.5x. So the answer is .4
Answer:
Total Money= $250
Fence Price=$22.50/m
Metres can buy= $250/22.50= 11.11 metres