Answer:
x = 10
Step-by-step explanation:
Given
4x + 2 = 42 ( subtract 2 from both sides )
4x = 40 ( divide both sides by 4 )
x = 10
To find the percent of a number, divide the number you want to figure out what percent of the other number is by the other number. 42 divided by 60 is 0.7. Then you have to move the decimal two places to the right, giving you 70. The answer is 70%.
The answer is 145. I used the other angles as a triangle; I forgot what the theory is called for the easier way. I found out the complementary angle from subtracting <1 from 180. Then I added the new angle and <2 this gives me <4. It would be easier to explain if I remembered what the theory was called. Sorry and hope this helps; this is the answer bye.
12% of 72 is:
=12×72/100
=8.64
So the 12% of 72 is 8.64 is your answer.
