Answer:
500 lb
Step-by-step explanation:
Let x lb be the weight of seawater needed to get 17.5 lb of salt.
Now,
x lb - 100%
17.5 lb - 3.5%
Write a proportion:

Cross multiply:

Answer:
2. 9, 8+9
3. 17-8=9, 17, 8, 9
4. 13-7=6
Step-by-step explanation:
Answer:

Step-by-step explanation:



The equation is just 5 3/4 times 3 1/3. You make the denominators the same by multiplying them by each other. It will be 5 3/12 times 3 1/12. Now you times these two together. You can do this part yourself because it will be confusing on here. I hope i helped atleast a little.
Answer:
A right triangle is a triangle in which one of the angles is a 90∘ angle. The "square" at the vertex of the angle indicates that it is 90 degrees. A triangle can be determined to be a right triangle if the side lengths are known.