Answer:
x= 5/4 ; y= -7/4
Step-by-step explanation:
I will solve your system by substitution.
(You can also solve this system by elimination.)
3x+y=2;5x−y=8
Step: Solve3x+y=2for y:
3x+y+−3x=2+−3x(Add -3x to both sides)
y=−3x+2
Step: Substitute−3x+2foryin5x−y=8:
5x−y=8
5x−(−3x+2)=8
8x−2=8(Simplify both sides of the equation)
8x−2+2=8+2(Add 2 to both sides)
8x=10
8x
8
=
10
8
(Divide both sides by 8)
x=
5
4
Step: Substitute
5
4
forxiny=−3x+2:
y=−3x+2
y=−3(
5
4
)+2
y=
−7
4
(Simplify both sides of the equation)
Answer:
x=
5
4
and y=
−7
4
The answer to your question is x=14
No it's already at its lowest
Graph it on graph paper then connect the dots then you can measure each side by the amount of boxes and then you take base × height ÷2
Answer: 25%
Step-by-step explanation:
Original price of chocolate = $48
Price taken off for Tom = $12
i.e $12 out of $48 means Tom bought the chocolate $32
Hence, percent discount = (Price taken off/Original price) x 100%
= (12/48) x 100%
= 0.25 x 100%
= 25%
Thus, the percentage discount on the chocolate is 25%