X + Y = 10
X + 2Y = 16
First, subtract Y from both sides in X + Y = 10.
X = 10 - Y
X + 2Y = 16
Next, plug X into X + 2Y = 16.
X = 10 - Y
10 - Y + 2Y = 16
Afterwards, simplify.
X = 10 - Y
Y + 10 = 16
Subtract 10 from both sides in Y + 10 = 16
X = 10 - Y
Y = 6
Finally, plug Y into X = 10 - Y
X = 10 - 6
Y = 6
Simplify
X = 4
Y = 6
Well this is an easy one. ok so you only have to times 7/2 by 2. That will equal 14/8
x has to be greater or equal to 16,000
x ≥ 16,000
9514 1404 393
Answer:
input: 0 or -4
Step-by-step explanation:
<u>Given</u>:
c(y) = y² +4y
<u>Find</u>:
y such that c(y) = 0
<u>Solution</u>:
0 = y² +4y . . . . . desired condition
0 = y(y +4) . . . . . factor
We have the product of two factors. The "zero product rule" tells us that the product is only zero if one or more of the factors is zero.
y = 0 . . . . . makes the factor y be zero
y = -4 . . . . . makes the factor (y+4) be zero
The inputs you're looking for are 0 or -4.