<span>135
Using a standard normal table, you can look up the number of standard deviations for the 98% value which will be 2.054. Then multiply this number by the standard deviations and add that to the mean to get the desired value. So
2.054 * 15 + 100 = 130.81
Rounding to the nearest whole number gives you 131.</span>
Answer:
B.(3x+12)+x=90
Step-by-step explanation:
The average of the following is 63.4
Answer:
46
Step-by-step explanation:
The value 529 is 23·23, so Bert must have had 23 friends bring him 23¢ each.
The way 23¢ can be made with 6 coins is ...
So, Bert collecte 23 × (2 nickels) = 46 nickels.