Answer:
one
Step-by-step explanation:
89 gram= 8.9 decagram = 0.89 hectograms = 0.089 kilogram
Simultaneous Equations
3x + y = 4
5x - y = 22
The signs of the matching values aren't the same so we add the rest of the equations.
8x = 26
Divide both sides by 8 to get x = 3.25
Now substitute back into the first equation.
(3 x 3.25) + y = 4
9.75 + y = 4
Subtract 9.75 from both sides
y = -5.75
Answer:
yes it is a quadratic equation
Step-by-step explanation:
a polynomial equation of the second degree.
hope it helps
Henry paid a total of $360 for the dishwasher: $20 + (10 x $34) = $20 + $340= $360
Therefore he paid $40 extra which we place over the original amount of the dishwasher:

Dividing 1 by 8 we get .125 which, when changed to a percentage becomes 12.5%
Henry paid a yearly interest rate of 12.5%