To do this, add the equations together like this,
3x + 4y = 2 plus
4x - 4y = 12
-x = 14
Multiply the negative sign to both sides because the x cannot be a negative.
x = -14
Now plug in -14 for a x value in one equation, like this to get the y value:
3(-14) + 4y = 2
-42 + 4y = 2
Add 42
4y = 44
y = 11
Your x and y values are:
x = -14
y = 11
Answer: Pen increased by 100%; Jacket increased by 0.5%
Step-by-step explanation:
Pen increased by 100%,
1 ÷ 1 × 100= 100%
While jacket increased by
199 ÷ 200 × 100
=99.5%
99.5%- 100%
=0.5%
Multiplicative inverse of 1/2 = 2/1 = 2
Thus, the multiplicative inverse of 1/2 is 2.
