Answer:
Step-by-step explanation:
We want to evaluate:
for x=-2 and y=-4.
We substitute to get:
We now simplify to get:
Answer:
60 ml of 40% saline and 90 ml of 15% saline
Step-by-step explanation:
We can call the amount of 40% solution x and the amount of 15% solution y.
x + y = 150 -- (1)
0.40x + 0.15y = 150 * 0.25 -- (2) --- 150 * 0.25 = 37.5
40x + 15y = 3750 (Multiply (2) by 100 to get rid of decimals)
15x + 15y = 2250 -- (3) (Multiply (1) by 15)
25x = 1500 (Subtract (3) from (1)
x = 60
y = 150 - 60 = 90
The answer is True because it has real numbers in it
There are an infinite number of possibilities.
Here's one:
6x + 107 = -77x - 59
Answer: I believe its D. other function
