Answer:
70 questions
Step-by-step explanation:
You can make a proportion.

Multiply across:
7x=490
Divide by 7:
x=70
<u>Final answer</u>
70 questions
Square root of 25/16 is 5/4
square root of 36/25 is 6/5
square root of 25/16 - square root of 36/25 = 5/4 - 6/5 = (25 - 24)/20 = 1/20
The answer is 70%. 28(number of all the sports besides soccer) divided by 40(number of all sports) is 0.7. Multiply 0.7 by 100 and you will get 70%.
Answer:
Step-by-step explanation:
1. Sulfúrico
2. Flúor (hídrico) o (ico)
3. Pos o post (hídrico)
4. yodico o yoridico
5. Permaganico
6. biom (ico)
7. Nitrico
8. Fosforoso
9. Per-color (ico)
10. Flour (ico)
11. Niobico
12. Potasico
13. Titánico
14. Platoso
15. Vanad(ico)