The tax rate as a percent, r, charged on an item can be determined using the formula StartFraction c Over p EndFraction minus 1
2 answers:
Answer:
$43.2
Step-by-step explanation:
Given Formula :
r is in decimals
Where c is the final cost of the item
p is the price of the item before tax.
Now we are supposed to find the final cost of a $40 item after an 8% tax is applied
So, r = 8% = 0.08
p = $40
Substitute the values in the formula :
So,
Hence the final cost of a $40 item after an 8% tax is applied is $43.2
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The value of x is 4. So 40000 mg= 40 g.
Step-by-step explanation:
The given is 40000mg = 10x g
Step:1
Take given equation as equation (1)
40000 mg= 10x g.................(1)
where, X is known value.
Step:2
Standard value for mg to g for the purpose of conversion of units,
1 milligram = 0.001 gram (or)
1 gram = 1000 milligram
Step:3
From the standard data values,
= 40000 mg
it converted mg to g by dividing 1000
= g
= 40 g.......................(2)
Step:4
From the Equations (1) and (2),
40=10x
x=4
Result:
The value of x is 4. So, 40000mg = 40 g.