This is a sohcahtoa question, in this case itd be cosine. The "cah" part stands for cos(x)=adjacent/hypotenuse. Using numbers it would be cos(x)=4/12. To find x youd have to take the cos^-1 of both sides so x=cos^-1(4/12)
Answer:
7
Step-by-step explanation:
We can setup this equation as x representing his number. (x+13) * 3 = 9x -3.
Now, we just need to solve for x.
3(x+13)=9x-3
x+13=3x-1
14=2x
x=7
Answer:
A. 14
Step-by-step explanation:
Since 10% of $100 so 100(0.10) = 10, they both make an additional deposit of $10. So, they have the same amount of money after the first additional deposit.
After the first additional deposit, Leroi has 1110+ 10 = $120. Sylvia has 110 + 0.10(110) = 110 + 11 = $121. So she has more money after the second deposit.
<u>Sylvia will continue to have more money after a month and a year since 10% of the balance is going to be greater than the $10 deposit that Leroi is making. </u>
