Amount needed=earned+already have
205=earned+30
earned=7 times number of hours=7h
205≤7h+30
we used the less than or equal to because he needs at least 205, means 205 or greater must be earned
205≤7h+30
minus 30 both sides
175≤7h
divide both sides by 7
25≤h
needs to work at least 25 hours
I believe the answer is D. let me know if im wrong
Use rules of logarithms to condense. log ( y 3 x 2 z 4 )
Answer: -1/4
Step-by-step explanation: The reason is simple. When working with negatives, you reverse the rules and the smaller number becomes the larger number, because it is closer to zero.
4 red marbles
16 yellow marbles
5 purple marbles
16 blue marbles
10 green marbles
Total marbles 51 marbles
16 blue marbles or 4 red marbles
(16+4)/51= 20/51