Four is greater than y, and -1 is less than y
Answer:
-7√5
Step-by-step explanation:
I'll transcribe your verbal question into a symbolic one as best I can:
-2√20 - √125
Note how √20 = √4*√5 and √125 = √25 *√5. Thus,
your -2√20 - √125, after we've factored √5 out of both terms, becomes
-2(2)√5 - 5√5, or -2√5 - 5√5, which combines to form
-7√5 (answer)
800+16x=720+21x
80+16x=21x
80=5x
X=16
So 16 hours :)
Answer: Depends on how many cubes were used
Step-by-step explanation:
