She practiced 630 hours in all because you multiply 18x35
Knowing the ratio for dogs to cats is 10:9
To get to 50 dogs they multiplied 10x5
So multiply 9x5 as well to get the number of cats
Cats = 45
:) hope this helps
X / 6/7 is 3 2/5. First, concert the numbers to decimals for simplicity sake, and you get x/.857 = 3.4. Multiply both sides by .857 to get x alone and you get x ≈ 2.9143
Answer:
Nitrogen has an atomic number of 7 (Z=7) because it has 7 protons in its nucleus.
I think that's what you're looking for
?? I can always be wrong.
Good luck, hope this helped!
Answer:
see below
Step-by-step explanation:
(x³ + 9) / (x³ + 8)
= (x³ + 8) / (x³ + 8) + 1 / (x³ + 8)
= 1 + 1 / (x³ + 8)
