The first thing he has to do is take that "minus" sign through the parentheses containing the second polynomial. Some students find it helpful to put a " 1 " in front of the parentheses, to help them keep track of the minus sign. Here's what the subtraction looks like, when working horizontally.
Answer:
The quantity of first mixture = x = 75 pounds
The quantity of second mixture = 175 - x = 175 - 75 = 100 pounds
Step-by-step explanation:
Total quantity of mixture = 175 pounds
Let quantity of first mixture = x
Quantity of second mixture = 175 - x
From the given information
x (0.9) + (175 - x) × 1.6 = 175 × 1.3
By solving above equation we get
0.9 x + 280 - 1.6 x = 227.5
0.7 x = 52.5
x = 75 pounds
Thus the quantity of first mixture = x = 75 pounds
The quantity of second mixture = 175 - x = 175 - 75 = 100 pounds
A. (5,2) Because the X axis is 5 points from each other and the Y axis is 2 points from each other.
The answer of this question is - 5/4.
m = - 5/4
