First, convert kg to g >> 4.5kg*1000g/1kg = 4500g
then, divide by 250g >> 4500g/250g = 18
the answer is 18 packets
I got d equals negative two
Answer:
y = 2x -4
Step-by-step explanation:
-10x + 5y = -20
+10x +10x
5y = 10x -20
5 5 5
y = 2x - 4
Answer:
x = 7
y = -2
Step-by-step explanation:
4x + 3y = 22 ---------------------(I)
5x - 4y = 43 ---------------------(II)
Multiply(I) by 4 and equation (II) by 3. And then add the equations
(I) * 4 16x + 12y = 88
(II) *3 <u>15x - 12y = 129</u> {Add & thus y will be eliminated}
31x = 217
x = 217/31
x = 7
Plug in the value of x in equation (I)
4*7 + 3y = 22
28 + 3y = 22
3y = 22 - 28
3y = -6
y = -6/3
y = -2
Answer:
.
Step-by-step explanation:
We are given 
and 
are zeros of the polynomial 
.
We want to find the value of 
if 
.
Lets use veita's formula.
By that formula we have the following equations:
(-b/a where the quadratic is ax^2+bx+c)
(c/a)
Let's simplify those equations:
If and , then 
.
Let's solve this for k:
Subtract 6 on both sides:
Find a common denominator:
Simplify:
.
