Cost: $50
Rate of Tax: ___
Tax: $0.40
Total Cost: ___
I dont get it. How am I supposed to figure this out??????
2006-12-19 08:58:50 · 7 answers · asked by ♥ 6 in Science & Mathematics ➔ Mathematics
Well let's call the rate of tax r. So $50 times r is equal to $0.40. If you put that in algebraic form it is
50*r=0.40
r=0.40/50
r=0.008 or 0.8%
Total cost would be the cost plus tax so it's $50.40 in this example.
2006-12-19 09:03:05 · answer #1 · answered by knock knock 3 · 0⤊ 0⤋
Let x = rate of tax
50 x = 0.40
x= 0.40/50= 0.008
So tax rate = 100(.008) =0.8% [Multiply rate *100 to get %]
Total Cost = 50 dollars + 40 cents = $50.40
2006-12-19 09:11:43 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
Rate = 0.40/50 x 100% = 8%
Total cost = $50.40
What is $0.40 compared to $50? What fraction? What percent?
2006-12-19 09:04:17 · answer #3 · answered by steve_geo1 7 · 0⤊ 0⤋
"Rate of tax" is basically the percentage of your net cost your tax is.
Your net cost is $50 and your tax is $0.40 so you need to know what percentage of $50 $0.40 is
50 * x/100 = 0.40
50x = 40
x = 40/50
x = 0.8
So rate of tax is 0.8%
Total cost is your net amount plus your tax
$50 + $0.40
Your total cost is $50.40
2006-12-19 09:05:34 · answer #4 · answered by Tom :: Athier than Thou 6 · 0⤊ 0⤋
Divide the tax by the cost:
.40/50.0 = .008, or .8%
Tax rate = .8%, or .008
Total cost = cost + tax, or $50.40
2006-12-19 10:37:32 · answer #5 · answered by jogimo2 3 · 0⤊ 0⤋
rate of tax=tax/cost *100
=0.40 *100/50
=0.80%
total cost=cost+tax=$50.40
2006-12-19 09:02:04 · answer #6 · answered by raj 7 · 0⤊ 0⤋
50*rate=0.4
rate=0.4/50*100%=0.8%
Alegebra is the key
2006-12-19 09:04:51 · answer #7 · answered by A T 2 · 0⤊ 0⤋