Answer:
4 liters of 5% solution and 16 liters of 17.5% solution we need.
Step-by-step explanation:
Let us assume that x liters of 5% solution and y liters of 17.5% solution are taken.
So, x + y = 20 ........ (1)
As the final solution is of 15%, so we can write
⇒ 5x + 17.5y = 300 ......... (2)
Now, solving equations (1) and (2) we get,
17.5y - 5y = 200
⇒ 12.5y = 200
⇒ y = 16 liters
Hence, x = 20 - y = 4 liters.
Therefore, 4 liters of 5% solution and 16 liters of 17.5% solution we need. (Answer)
Answer:
f(x) = -1/x
Step-by-step explanation:
Here, we want to find the function that is not linear
A linear function is of the form;
y = mx + b
where m can be zero, or b can be zero
The only option that does not follow this description is
f(x) = -1/x
Answer:
The other endpoit has this cordinadetes (11, 11).
Step-by-step explanation:
Midpoint (MD) (Xm, Ym)
Xm = 5
Ym = 2
Xm of the Midpoint: Xm = X1 + X2/ 2
Ym of the Midpoint: Ym = Y1 + Y2/2
<em>We can say that S is (x1, y1), so x1 = -1 and y1 = -7</em>
Then:
Xm = -1 + x2/2
5= -1 + x2/2
10 = -1 + x2
x2 = 11
Also:
Ym = -7 + y2/2
2 = -7 + y2/2
4 = -7 + y2
11 = y2
65% of 40 = 26(saved)
40-26=14(spent)
26-14=12
=$12
Answer:
8000-6=7994 is the required number
