Answer:
x+19
Step-by-step explanation:
3x+12 - 2x+7 = x+19
Will represent as such
number of 37 inch tvs=x
number of 58 inch tvs=y
number of 50 inch tvs =z
x is double of (y+z)
x=2(y+z)
y=z
therefor
x=2(y+y)=2(z+z)=4y=4z
x=4y=4z
y=$4800
z=$2000
x=$1800
4800y+2000z+1800x=168000
undistribute the 100
100(48y+20z+18x)=100(1680)
divide the whole thing by 100
48y+20z+18x=1680
divide the whole thing by 2
24y+10z+9x=840
y=z
24y+10z=34y or 34z
34y+9x=840
convert 9x to y by multiply 4
9x times 4=36y or 36z
34y+36y=840
70y=840
divide both sides by 70
y=12
y=z
z=12
x=4z
x=4(12)
x=48
they should stock:
12 50 inch tvs
12 58 inch tvs
48 38 inch tvs
{(–3, 2), (–1, 3), (–1, 2), (0, 4), (1, 1)}
Answer:
The given relation is not a function because the input of –1 has two outputs of 2 and 3.
Yess 5 is the correct answer
Not really sure about this one
