This is the way how to add exponents 10^6
Answer:
=2x
Step-by-step explanation: 5x times -3x and get 2x the 5 is bigger than the 3 so it will be a positive.
Answer:
The amount of nuts is 16 kg and cereal mixture is 44 kg to obtain 60 kg of a mix that will sell for $1.40 per kg
Step-by-step explanation:
Let
x=nuts at $2.50 per kg
y=cereal at $1 per kg
x+y=60 kg (1)
2.50x+y=1.40(60) (2)
From (1)
x=60-y
Substitute x=60-y into (2)
2.50x+y=1.40(60)
2.50(60-y)+y=84
150-2.5y+y=84
-1.5y=84-150
-1.5y=-66
Divide both sides by -1.5
y=44 kg
Substitute y=44 into (1)
x+y=60
x+44=60
x=60-44
=16
x=16 kg
Answer:
(-0.4, 4)
x+y=3.6 /*(-1)
2x+y=3.2
-x -y= -3.6
----------------
x /= -3.6+3.2
x= -0.4
-0.4+y=3.6
+0.4 0.4
y= 4
Step-by-step explanation: