Step-by-step explanation:
his mistake was that he didnt follow the rules of the order of operations and he multiplied 4 by 4 and just added the third power and the 6th power getting the wrong answer
hope this helps:) good luck
Assume that there are 100 students in the class.
(Working with numbers is easier than working with percentages).
There are 27 students who passed both tests, and 51 who passed only the first test.
The 27 students who passed both tests are included in the 51 who passed the first test.
We are asked "What percent of those who passed the first test also passed the second test?"
so we are asked "what percent of 51 is 27?"
let 51 be 100%
then 27 is
![\frac{27*100}{51}](https://tex.z-dn.net/?f=%20%5Cfrac%7B27%2A100%7D%7B51%7D%20)
%=52.941%
Answer: 52.941%
You have to write more for me to solve the question
We have two numbers that add to 42.... Call the larger number X and the smaller number Y X+Y = 42 We are told that Y is 12 less than X so Y = X-12 Substitute X-12 in place of Y in the original equation giving X + X -12 = 422X - 12 = 42Add 12 to both sides2X = 54Divide both sides by 2X = 27 Y = X-12 = 27 - 12 = 15 Our two numbers are 27, 15
Answer:
69 years
Step-by-step explanation:
Trust me 69