15x>200. The minimum number of hours he must work to earn at least $200 is 14 hours. Working 14 hours will allow him to receive $210. This is the minimum number of hours he can work because if he works 13 hours instead, he will only make $195, which is less than 200. 15x>200 (15x is equal to or greater than 200) x=14.
Answer:
x+3+ 8/2x^2-1
Step-by-step explanation:
Hope it helps!
Answer:
55
Step-by-step explanation:
sinx = opposite/hypotenuse = 9/11
x = arcsin(9/11) = 54.9031987, which is about 55, degrees
Multiply 8 total hours by 1/4 to find the number of piano hours.
= 8 * 1/4
= (8*1)/4
= 8/4
= 2 piano hours
ANSWER: He practiced piano for 2 hours.
Hope this helps! :)