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:x=1, y=1
Step-by-step explanation:
2(1)-1=1
3(1)1-1=2
Answer:
28 ft
Step-by-step explanation:
Answer:
D) < 3, 7)>
Step-by-step explanation:
<u><em>Explanation</em></u>:-
Given that the vector < 3 , -7 >
Given the vector reflection across the x-axis
(x,y) → (x , -y)
The vector < 3,-7> →< 3, -(-7)>
< 3,-7> →< 3, 7)>
Answer:
Question 2 is the right answer.
Step-by-step explanation: