Answer:
Given the statement: One pound of grapes costs $1.55.
Let x be be the cost of 3.5 pounds of grapes.
Equivalent ratios states that the two ratios that express the same relationship between numbers.
Therefore, by equivalent ratio:

then, we have;

Cross multiply the above equation; we hve

x = 5.425
therefore, the cost of 3.5 pounds of grapes is, $5.425
Estimate of 428,731 - 175,842 = 400,000 - 200,000 = 200,000
|13-6| < x < |13+6|
So the range will be:
7 < x < 19
Answer:
x = 0.
Step-by-step explanation:
5x - 15 = 5(-4x - 3)
5x - 15 = -20x - 15
25x = 0
x = 0.