Answer:
a=7.9
Step-by-step explanation:
2.25(a+1.3)=20.7 *Distribute (multiply) the 2.25 throughout the parenthesis
2.25a+2.925=20.7 *Subtract 2.925 from both sides
2.25a=17.775 *DIvide by 2.25
a=7.9
You would find the probability of getting an answer less than 10 by counting all of the possible outcomes, or numbers that are less than 10 and compare them to the total number of possible outcomes, or the total number of numbers. You would write the ratio of predicted outcomes to total possibilities.
The answer would be 4/9.
Answer:
B. 88.5
Step-by-step explanation:
first we add all the numbers :
(79 +80 +92 +92 +81 +100 +88 +98 +71 + 100+91+90) over 12
= 1062 over 12
= 88.5
[why over 12? because there's 12 numbers]
