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:
Slope= y2-y1 / x2-x1
slope = 15 - (-1) / 3- (-1)
slope = 16 / 4
slope = 4
Answer: The total cost was $13,585.00.
Step-by-step explanation:
13 * 425 = 5,525
13 * 620 = 8,060
8,060 + 5,525 = 13,585
The value of x is about 4.7
Answer:
Horizontal lines are parallel to the x-axis
The answer is the second option