The change in value over 4 years is
$22,000 - 30,000 = -$8,000
so the average change in value per year is
-8000/4 = -2000
I think you just divide the 130 ft by the 40 ft = 3.25 ??
To start off, you want to make the equations. first, we will make x = chocolate candy and y=caramel candy since thats the order they come in the problem. we know she bought 20 pieces of candy, so we now know our first equation, x+y=20. next, if each chocolate candy costs $.50, that now makes x in our second equation .5x. the y will then be .1y. they then total up to equal $6.80, so our second equation is .5x+.1y=6.8. to then find x, subtract the y from the first equation to get x=20-y. then in the second equation, replace x with y and solve. you then get y=8, so we know britney has 8 caramels. now in the first equation, replace the y to get x+8=20. and now x=12
Answer=8.25 or 8 1/4
Area=103 1/8
Length=12 1/2
Okay, so we know the Area and Length of a rectangle, and are just trying to solve for the width.
The formula for the area of a rectangle is:
Area=length*width
Now lets fill in the data that we know
103 1/8=12 1/2 * width
to get the width by itself, divide both sides by 12 1/2
8.25=width
Answer=8.25 or 8 1/4
